PVP/VA W-735

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate)

CAS No. : 25086-89-9

EC No. : 607-540-1

Synonyms:

Vinylpyrrolidone; vinylacetate copolymer; vinyls; polyvinylpyrrolidone and vinylpyrrolidone copolymers (PVP); Polyvinylpyrrolidone/vinyl acetate; Polivinilpirolidon Vinil Asetat; vinilpirolidon-vinil asetat polimer; Vinyl acetate-vinylpyrrolidinone polymer; Vinyl acetate-vinylpyrrolidone copolymer; Vinylpyrrolidinone-vinyl acetate polymer; Vinylpyrrolidone-vinyl acetate copolymer; N-Vinylpyrrolidone-vinyl acetate polymer; Vinyl acetate-N-vinylpyrrolidone polymer; Vinyl acetate-N-vinylpyrrolidinone polymer; Vinyl acetate-N-vinylpyrrolidone copolymer; Vinyl acetate-vinylpyrrolidinone copolymer; Vinylpyrrolidinone-vinyl acetate copolymer; Vinyl acetate-N-vinylpyrrolidinone copolymer; 1-Vinyl-2-pyrrolidone-vinyl acetate copolymer; 2-Pyrrolidinone, polymer with ethenyl acetate; Vinyl acetate-1-vinyl-2-pyrrolidinone polymer; Vinyl acetate-N-vinyl-2-pyrrolidone copolymer; Vinyl acetate-N-vinyl-2-pyrrolidinone copolymer; Ethenyl acetate, polymer with 1-ethenyl-2-pyrrolidinone; vinylpyrrolidone vinyl acetate; N-vinylpyrrolidone vinyl acetate; 1-vinylpyrrolidone vinyl acetate; PVP/VA W 735; PVP-VA W 735; PVP VA W 735; PVP/VA W-735; PVP/VA W/735;PVP-VA E-335; PVP-VA E-335; PVP-VA E-735; PVP-VA E-735; PVP-VA I-335; PVP/VA 37 E; PVP/VA 37 I; PVP/VA 55 E; PVP/VA 55 I; PVP/VA 64 E; PVP/VA E 335; PVP/VA E 535; PVP/VA E 735; PVP/VA E 735; PVP/VA I-735; PVP/VA E-735; PVP/VA E-735; PVP/VA I-735; PVP/VA W-735; PVP/VA E-735; PVP/VA E-535; PVP/VA I-535; PVP/VA I-335; PVP/VA I-735;Luviskol VA 37 E ; Luviskol VA 37 I ; Luviskol VA 55 I ; Luviskol VA 64 P ; Luviskol VA 64 W ; Luviskol VA 73 W ; Luviskol VA 73 E; Luviskol VA 37 E 2; Luviskol VA 37 I ; Luviskol VA 55 I ; Luviskol VA 64 P ; Luviskol VA 64 W ; Luviskol VA 73 W ; Luviskol VA 73 E ethenyl acetate;1-ethenylpyrrolidin-2-one; copovidone; Kollidon VA64; poly(V-co-V-Ac); poly(vinyl pyrrolidone-co-vinyl acetate); poli(vinil pirolidon-ko-vinil asetat); poly(vinylpyrrolidone-co-vinyl-acetate); poli(vinilpirolidon-ko-vinil-asetat); PVP VA64; PVP-VA; Poly(1-vinylpyrrolidone-co-Vinyl Acetate); 25086-89-9; PVP/VA Copolymer; Polectron 845; Luviskol VA 28I; Luviskol VA 37E; Luviskol VA 64; Kolima 10; Kolima 35; Luviskol VA 281; Gantron S 860; Luviskol VA 28 I; Luviskol VA 37 E; PVP-VA; ethenyl acetate- 1-ethenylpyrrolidin-2-one(1:1); Acetic acid vinyl ester, polymer with 1-vinyl-2-pyrrolidinone; Acetic acid ethenyl ester, polymer with 1-ethenyl-2-pyrrolidinone; Vinyl acetate-vinylpyrrolidone polymer; vinil asetat-vinilpirolidon polimer; Vinylpyrrolidone-vinyl acetate polymer; vinilpirolidon-vinil asetat polimer; Vinyl acetate-vinylpyrrolidinone polymer; Vinyl acetate-vinylpyrrolidone copolymer; Vinylpyrrolidinone-vinyl acetate polymer; PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate); Vinylpyrrolidone-vinyl acetate copolymer; N-Vinylpyrrolidone-vinyl acetate polymer; Vinyl acetate-N-vinylpyrrolidone polymer; Vinyl acetate-N-vinylpyrrolidinone polymer; Vinyl acetate-N-vinylpyrrolidone copolymer; Vinyl acetate-vinylpyrrolidinone copolymer; Vinylpyrrolidinone-vinyl acetate copolymer; Vinyl acetate-N-vinylpyrrolidinone copolymer; 1-Vinyl-2-pyrrolidone-vinyl acetate copolymer; 2-Pyrrolidinone, polymer with ethenyl acetate; Vinyl acetate-1-vinyl-2-pyrrolidinone polymer; Vinyl acetate-N-vinyl-2-pyrrolidone copolymer; Vinyl acetate-N-vinyl-2-pyrrolidinone copolymer; Ethenyl acetate, polymer with 1-ethenyl-2-pyrrolidinone; vinylpyrrolidone vinyl acetate; N-vinylpyrrolidone vinyl acetate; 1-vinylpyrrolidone vinyl acetate; 1-vinil pirolidon vinil asetat; acetic acid ethenyl ester, polymer with 1-ethenyl-2-pyrrolidinone; ethenyl acetate;1-ethenylpyrrolidin-2-one; poly(1-vinyl pyrrolidone-co-vinyl acetate); VP/VA COPOLYMER, 1-ETHENYL-2-PYRROLIDINONE, POLYMER WITH ACETIC ACID ETHENYL ESTER; 1-ETHENYL-2-PYRROLIDINONE, POLYMER WITH ETHENYL ACETATE; ACETIC ACID ETHENYL ESTER, POLYMER WITH 1ETHENYL2PYRROLIDINONE; ACETIC ACID, ETHENYL ESTER, POLYMER WITH 1-ETHENYL-2-PYRROLIDINONE; ETHENYL ACETATE, POLYMER WITH 1-ETHENYL-2-PYRROLIDINONE; ETHENYL ESTER POLYMER WITH 1-ETHENYL-2-PYRROLIDINONE ACETIC ACID; POLYMER WITH 1-ETHENYL-2-PYRROLIDINONE ACETIC ACID, ETHENYL ESTER; POLYMER WITH ACETIC ACID ETHENYL ESTER 1-ETHENYL-2-PYRROLIDINONE; POLYMER WITH ETHENYL ACETATE 1-ETHENYL-2-PYRROLIDINONE; PVP/ VA COPOLYMER; PVP/VA COPOLYMER; 25086-89-9; PVP/VA Copolymer; Polectron 845; Luviskol VA 28I; Luviskol VA 37E; Luviskol VA 64; Kolima 10; Kolima 35; Gantron S 860; Poly(1-vinylpyrrolidone-co-Vinyl Acetate); PVP-VA; Ganex E 535; GAF-S 630; Vinyl acetate-vinylpyrrolidone polymer; Vinylpyrrolidone-vinyl acetate polymer; Luviskol VA 281; Vinyl acetate-vinylpyrrolidinone polymer; Vinyl acetate-vinylpyrrolidone copolymer; Vinylpyrrolidinone-vinyl acetate polymer; Vinylpyrrolidone-vinyl acetate copolymer; Luviskol VA 28 I; Luviskol VA 37 E; N-Vinylpyrrolidone-vinyl acetate polymer; Vinyl acetate-N-vinylpyrrolidone polymer; Vinyl acetate-vinylpyrrolidinone copolymer; Vinylpyrrolidinone-vinyl acetate copolymer; Vinyl acetate-N-vinylpyrrolidinone polymer; Vinyl acetate-N-vinylpyrrolidone copolymer; Acetic acid vinyl ester, polymer with 1-vinyl-2-pyrrolidinone; Acetic acid ethenyl ester, polymer with 1-ethenyl-2-pyrrolidinone; Vinyl acetate-N-vinylpyrrolidinone copolymer; E 535; I 535; I 735; I 735; S 630; 1-Vinyl-2-pyrrolidone-vinyl acetate copolymer; Vinyl acetate-1-vinyl-2-pyrrolidinone polymer; Vinyl acetate-N-vinyl-2-pyrrolidone copolymer; Vinyl acetate-N-vinyl-2-pyrrolidinone copolymer; ethenyl acetate- 1-ethenylpyrrolidin-2-one(1:1); Ethenyl acetate, polymer with 1-ethenyl-2-pyrrolidinone; MFCD00134018; PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate); 2-Pyrrolidinone, polymer with ethenyl acetate; AC1L6PLN; AC1Q5XA0; SCHEMBL29127; vinylpyrrolidone vinyl acetate; N-vinylpyrrolidone vinyl acetate; 1-vinylpyrrolidone vinyl acetate; PVP/VA W 735; PVP-VA W 735; PVP VA W 735; PVP/VA W-735; PVP/VA W/735 ; ethenyl acetate;1-ethenylpyrrolidin-2-one; copovidone; Kollidon ; VA64poly(V-co-V-Ac); poly(vinyl pyrrolidone-co-vinyl acetate); poli(vinil pirolidon-ko-vinil asetat); poly(vinylpyrrolidone-co-vinyl-acetate); poli(vinilpirolidon-ko-vinil-asetat); PVP VA64; PVP-VA; Poly(1-vinylpyrrolidone-co-Vinyl Acetate); 25086-89-9; PVP/VA Copolymer; Polectron 845; Luviskol VA 28I; Luviskol VA 37E; Luviskol VA 64; Kolima 10; Kolima 35; Luviskol VA 281; Gantron S 860; Luviskol VA 28 I; Luviskol VA 37 E; PVP-VA; ethenyl acetate- 1-ethenylpyrrolidin-2-one(1:1); Acetic acid vinyl ester, polymer with 1-vinyl-2-pyrrolidinone; Acetic acid ethenyl ester, polymer with 1-ethenyl-2-pyrrolidinone; Vinyl acetate-vinylpyrrolidone polymer; PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate); vinil asetat-vinilpirolidon polimer; Vinylpyrrolidone-vinyl acetate polymer ;vinilpirolidon-vinil asetat polimer; Vinyl acetate-vinylpyrrolidinone polymer; Vinyl acetate-vinylpyrrolidone copolymer; Vinylpyrrolidinone-vinyl acetate polymer; Vinylpyrrolidone-vinyl acetate copolymer; N-Vinylpyrrolidone-vinyl acetate polymer; Vinyl acetate-N-vinylpyrrolidone polymer ;Vinyl acetate-N-vinylpyrrolidinone polymer ;Vinyl acetate-N-vinylpyrrolidone copolymer; Vinyl acetate-vinylpyrrolidinone copolymer; Vinylpyrrolidinone-vinyl acetate copolymer; Vinyl acetate-N-vinylpyrrolidinone copolymer; 1-Vinyl-2-pyrrolidone-vinyl acetate copolymer; 2-Pyrrolidinone, polymer with ethenyl acetate; Vinyl acetate-1-vinyl-2-pyrrolidinone polymer; Vinyl acetate-N-vinyl-2-pyrrolidone copolymer;PVP/VA W 735; PVP-VA W 735; PVP VA W 735; PVP/VA W-735; PVP/VA W/735;PVP-VA E-335; PVP-VA E-335; PVP-VA E-735; PVP-VA E-735; PVP-VA I-335; PVP/VA 37 E; PVP/VA 37 I; PVP/VA 55 E; PVP/VA 55 I; PVP/VA 64 E; PVP/VA E 335; PVP/VA E 535; PVP/VA E 735; PVP/VA E 735; PVP/VA I-735; PVP/VA E-735; PVP/VA E-735; PVP/VA I-735; PVP/VA W-735; PVP/VA E-735; PVP/VA E-535; PVP/VA I-535; PVP/VA I-335; PVP/VA I-735;Luviskol VA 37 E ; Luviskol VA 37 I ; Luviskol VA 55 I ; Luviskol VA 64 P ; Luviskol VA 64 W ; Luviskol VA 73 W ; Luviskol VA 73 E; Luviskol VA 37 E 2; Luviskol VA 37 I ; Luviskol VA 55 I ; Luviskol VA 64 P ; Luviskol VA 64 W ; Luviskol VA 73 W ; Luviskol VA 73 E ethenyl acetate;1-ethenylpyrrolidin-2-one; copovidone; Kollidon VA64; poly(V-co-V-Ac); poly(vinyl pyrrolidone-co-vinyl acetate); poli(vinil pirolidon-ko-vinil asetat); poly(vinylpyrrolidone-co-vinyl-acetate); poli(vinilpirolidon-ko-vinil-asetat); PVP VA64; PVP-VA; Poly(1-vinylpyrrolidone-co-Vinyl Acetate); 25086-89-9; PVP/VA Copolymer; Polectron 845; Luviskol VA 28I; Luviskol VA 37E; Luviskol VA 64; Kolima 10; Kolima 35; Vinylpyrrolidone; vinylacetate copolymer; vinyls; polyvinylpyrrolidone and vinylpyrrolidone copolymers (PVP); Polyvinylpyrrolidone/vinyl acetate; Polivinilpirolidon Vinil Asetat; PVP/VA W 735; PVP-VA W 735; PVP VA W 735; PVP/VA W-735; PVP/VA W/735;PVP-VA E-335; PVP-VA E-335; PVP-VA E-735; PVP-VA E-735; PVP-VA I-335; PVP/VA 37 E; PVP/VA 37 I; PVP/VA 55 E; PVP/VA 55 I; PVP/VA 64 E; PVP/VA E 335; PVP/VA E 535; PVP/VA E 735; PVP/VA E 735; PVP/VA I-735; PVP/VA E-735; PVP/VA E-735; PVP/VA I-735; PVP/VA W-735; PVP/VA E-735; PVP/VA E-535; PVP/VA I-535; PVP/VA I-335; PVP/VA I-735;Luviskol VA 37 E ; Luviskol VA 37 I ; Luviskol VA 281; Gantron S 860; Luviskol VA 28 I; Luviskol VA 37 E; PVP-VA; ethenyl acetate- 1-ethenylpyrrolidin-2-one(1:1); Acetic acid vinyl ester, polymer with 1-vinyl-2-pyrrolidinone; Acetic acid ethenyl ester, polymer with 1-ethenyl-2-pyrrolidinone; Vinyl acetate-vinylpyrrolidone polymer; vinil asetat-vinilpirolidon polimer; Vinylpyrrolidone-vinyl acetate polymer; vinilpirolidon-vinil asetat polimer; Vinyl acetate-vinylpyrrolidinone polymer; Vinyl acetate-vinylpyrrolidone copolymer; Vinylpyrrolidinone-vinyl acetate polymer; Vinylpyrrolidone-vinyl acetate copolymer; N-Vinylpyrrolidone-vinyl acetate polymer; Vinyl acetate-N-vinylpyrrolidone polymer; Vinyl acetate-N-vinylpyrrolidinone polymer; Vinyl acetate-N-vinylpyrrolidone copolymer; Vinyl acetate-vinylpyrrolidinone copolymer; Vinylpyrrolidinone-vinyl acetate copolymer; Vinyl acetate-N-vinylpyrrolidinone copolymer; 1-Vinyl-2-pyrrolidone-vinyl acetate copolymer; 2-Pyrrolidinone, polymer with ethenyl acetate; Vinyl acetate-1-vinyl-2-pyrrolidinone polymer; Vinyl acetate-N-vinyl-2-pyrrolidone copolymer; Vinyl acetate-N-vinyl-2-pyrrolidinone copolymer; PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate); Ethenyl acetate, polymer with 1-ethenyl-2-pyrrolidinone; vinylpyrrolidone vinyl acetate; N-vinylpyrrolidone vinyl acetate; 1-vinylpyrrolidone vinyl acetate; 1-vinil pirolidon vinil asetat; acetic acid ethenyl ester, polymer with 1-ethenyl-2-pyrrolidinone; ethenyl acetate;1-ethenylpyrrolidin-2-one; poly(1-vinyl pyrrolidone-co-vinyl acetate); VP/VA COPOLYMER, 1-ETHENYL-2-PYRROLIDINONE, POLYMER WITH ACETIC ACID ETHENYL ESTER; 1-ETHENYL-2-PYRROLIDINONE, POLYMER WITH ETHENYL ACETATE; ACETIC ACID ETHENYL ESTER, POLYMER WITH 1ETHENYL2PYRROLIDINONE; ACETIC ACID, ETHENYL ESTER, POLYMER WITH 1-ETHENYL-2-PYRROLIDINONE; ETHENYL ACETATE, POLYMER WITH 1-ETHENYL-2-PYRROLIDINONE; ETHENYL ESTER POLYMER WITH 1-ETHENYL-2-PYRROLIDINONE ACETIC ACID; POLYMER WITH 1-ETHENYL-2-PYRROLIDINONE ACETIC ACID, ETHENYL ESTER; POLYMER WITH ACETIC ACID ETHENYL ESTER 1-ETHENYL-2-PYRROLIDINONE; POLYMER WITH ETHENYL ACETATE 1-ETHENYL-2-PYRROLIDINONE; PVP/ VA COPOLYMER; PVP/VA COPOLYMER; 25086-89-9; PVP/VA Copolymer; Polectron 845; Luviskol VA 28I; Luviskol VA 37E; Luviskol VA 64; Kolima 10; Kolima 35; Gantron S 860; Poly(1-vinylpyrrolidone-co-Vinyl Acetate); PVP-VA; Ganex E 535; GAF-S 630; Vinyl acetate-vinylpyrrolidone polymer; Vinylpyrrolidone-vinyl acetate polymer; Luviskol VA 281; PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate); Vinyl acetate-vinylpyrrolidinone polymer; Vinyl acetate-vinylpyrrolidone copolymer; Vinylpyrrolidinone-vinyl acetate polymer; Vinylpyrrolidone-vinyl acetate copolymer; Luviskol VA 28 I; Luviskol VA 37 E; N-Vinylpyrrolidone-vinyl acetate polymer; Vinyl acetate-N-vinylpyrrolidone polymer; Vinyl acetate-vinylpyrrolidinone copolymer; Vinylpyrrolidinone-vinyl acetate copolymer; Vinyl acetate-N-vinylpyrrolidinone polymer; Vinyl acetate-N-vinylpyrrolidone copolymer; Acetic acid vinyl ester, polymer with 1-vinyl-2-pyrrolidinone; Acetic acid ethenyl ester, polymer with 1-ethenyl-2-pyrrolidinone; Vinyl acetate-N-vinylpyrrolidinone copolymer; E 535; I 535; I 735; I 735; S 630; 1-Vinyl-2-pyrrolidone-vinyl acetate copolymer; Vinyl acetate-1-vinyl-2-pyrrolidinone polymer; Vinyl acetate-N-vinyl-2-pyrrolidone copolymer; Vinyl acetate-N-vinyl-2-pyrrolidinone copolymer; ethenyl acetate- 1-ethenylpyrrolidin-2-one(1:1); Ethenyl acetate, polymer with 1-ethenyl-2-pyrrolidinone; MFCD00134018; 2-Pyrrolidinone, polymer with ethenyl acetate; AC1L6PLN; AC1Q5XA0; SCHEMBL29127; vinylpyrrolidone vinyl acetate; N-vinylpyrrolidone vinyl acetate; 1-vinylpyrrolidone vinyl acetate; Vinyl acetate-N-vinyl-2-pyrrolidinone copolymer; Ethenyl acetate, polymer with 1-ethenyl-2-pyrrolidinone ; vinylpyrrolidone vinyl acetate; N-vinylpyrrolidone vinyl acetate; 1-vinylpyrrolidone vinyl acetate; 1-vinil pirolidon vinil asetat; PVP VA W 735; PVP_VA W 735; PVP VA W735; PVP/VAW-735; PVPVAW735; Polivinil Prolidon Vinil Asetat; Polvnl Proldon Vnl Asetat; PolivinilProlidonVinilAsetat; Polvnl Proldon Vnl Asetat; POLVNL PROLDON VNL ASETAT; POLVNLPROLDON VNL ASETAT; POLVNLPROLDONVNL ASETAT; POLVNLPROLDONVNLASETAT; POLIVINIL PROLIDON VINIL ASETAT; POLIVINILPROLIDON VINIL ASETAT; POLIVINILPROLIDONVINIL ASETAT; POLIVINIL PROLIDONVINIL ASETAT; PVP WA W 735; pvp wa w 735; pvp- wa -w- 735; pvp /wa /w /735; pvp -wa- w 735; PVP/VA Copolymer; Vinylpyrrolidone; vinylacetate copolymer; vinyls; polyvinylpyrrolidone and vinylpyrrolidone copolymers (PVP); Polyvinylpyrrolidone/vinyl acetate; Polivinilpirolidon Vinil Asetat; PVP/VA W 735; PVP-VA W 735; PVP VA W 735; PVP/VA W-735; PVP/VA W/735;PVP-VA E-335; PVP-VA E-335; PVP-VA E-735; PVP-VA E-735; PVP-VA I-335; PVP/VA 37 E; PVP/VA 37 I; PVP/VA 55 E; PVP/VA 55 I; PVP/VA 64 E; PVP/VA E 335; PVP/VA E 535; PVP/VA E 735; PVP/VA E 735; PVP/VA I-735; PVP/VA E-735; PVP/VA E-735; PVP/VA I-735; PVP/VA W-735; PVP/VA E-735; PVP/VA E-535; PVP/VA I-535; PVP/VA I-335; PVP/VA I-735;Luviskol VA 37 E ; Luviskol VA 37 I; Vinylpyrrolidone; vinylacetate copolymer; vinyls; polyvinylpyrrolidone and vinylpyrrolidone copolymers (PVP); Polyvinylpyrrolidone/vinyl acetate; Polivinilpirolidon Vinil Asetat; vinilpirolidon-vinil asetat polimer; Vinyl acetate-vinylpyrrolidinone polymer; Vinyl acetate-vinylpyrrolidone copolymer; Vinylpyrrolidinone-vinyl acetate polymer; Vinylpyrrolidone-vinyl acetate copolymer; N-Vinylpyrrolidone-vinyl acetate polymer; PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate); Vinyl acetate-N-vinylpyrrolidone polymer; Vinyl acetate-N-vinylpyrrolidinone polymer; Vinyl acetate-N-vinylpyrrolidone copolymer; Vinyl acetate-vinylpyrrolidinone copolymer; Vinylpyrrolidinone-vinyl acetate copolymer; Vinyl acetate-N-vinylpyrrolidinone copolymer; 1-Vinyl-2-pyrrolidone-vinyl acetate copolymer; 2-Pyrrolidinone, polymer with ethenyl acetate; Vinyl acetate-1-vinyl-2-pyrrolidinone polymer; Vinyl acetate-N-vinyl-2-pyrrolidone copolymer; Vinyl acetate-N-vinyl-2-pyrrolidinone copolymer; Ethenyl acetate, polymer with 1-ethenyl-2-pyrrolidinone; vinylpyrrolidone vinyl acetate

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate)

VP/VA Copolymer. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) is a film former. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) is produced by the free-radical polymerization of monomers in the ratio of 70/30 (VP/VA). PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) offers strong & stiff hold, enhanced high humidity curl retention and good propellant compatibility. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) finds application in formulating alcohol-free and hair care products like hairsprays, colorants, mousses, gels, styling lotions/creams and novelty stylers. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) is a 50% solution of linear and random polyvinylpyrrolidone/vinyl acetate (PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)) copolymer in water. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) forms transparent, flexible and oxygen permeable films which adhere to glass, plastic and metal.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) is a film former produced by the free-radical polymerization on monomers in 70/30 VP/VA ratio. It is a 50% solution of linear and random polyvinylpyrrolidone/vinyl acetate (PVP/VA) copolymer in water. PVP/VA W-Series copolymers are linear, random copolymers produced by the free-radical polymerization of the monomers varying from 30/70 to 40/60 vinyl acetate (VA) to vinylpyrrolidone (VP), supplied in water.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) polymers produce transparent, flexible, oxygen permeable films which adhere to glass, plastics and metals.

Polyvinylpyrrolidone/vinyl acetate (PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)) resins are linear, random copolymers produced by the free-radical polymerization of the monomers in ratios varying from 70/30 to 30/70 vinyl acetate to vinylpyrrolidone.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) copolymers are available as white powders or clear solutions in ethanol, isopropanol and water. Polymers in the four ranges of vinylpyrrolidone content (30, 50, 60 and 70 percent), are produced in ethanol or isopropanol. The PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) copolymers with 60 and 70 percent vinylpyrrolidone content are available as solids or as 50 percent aqueous solutions.

What is PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) Copolymer?

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) Copolymer is the ingredient found in most mainstream hair care products that provides the hold factor. So it is very common in most Hairsprays but also found in gel’s, wax’s, pomades and styling creams. It is a synthetic ingredient that is derived from petroleum.

This was fixed with the help of another polymer, a silicone called polydimethylsiloxane. To understand how this silicone made a better hairspray, it helps to understand how the hairspray works in the first place. When you spray it on, the polyvinylpyrrolidone forms a thin coating on the hair. This coating is stiff and keeps the hair from moving around.

This affords formulators considerable flexibility in creating new products for specific applications. The transparent films formed by all of these copolymers are characterized by adhesion, luster, hardness and water rewettability. Good compatibility with many modifiers and plasticizers permits wide freedom in formulation and broadens the range of hygroscopicity, film flexibility, and abrasion resistance. Unmodified copolymers having the lower ratios of vinylpyrrolidone to vinyl acetate exhibit more moisture resistance than products with high ratios.

The PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) S copolymer

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) S-630 copolymer, a white, odorless powder, is also available at a 60/40 VP/VA weight ratio. It is a high molecular weight, solvent and water soluble copolymer exhibiting a minimum critical solution temperature of approximately 70°C. Films cast from solutions are glossy, translucent and rewettable by water.

The PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) W copolymers

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) W-735 copolymer is a 70/30 copolymer of PVP and vinyl acetate supplied as a 50% solution in water. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)

W-635 copolymer is a 60/40 copolymer also supplied as a 50% aqueous solution.

VA (vinyl acetate) is a more hydrophobic molecule than VP (vinylpyrrolidone). Thus increasing VA content of the copolymer causes an increase in hydrophobicity and consequently a decrease in water solubility and hygroscopicity relative to the VP homopolymer.

Plasticizers and Polymers: Most PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) copolymers are compatible with a variety of nonionic and cationic polymers. Compatibility with anionic copolymers can be achieved through neutralization prior to mixing.

Hygroscopicity of Films: The inherent water sensitivity of PVP/ VA copolymer films varies with the monomer ratio. Typical data are shown below for PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E-735 copolymer, PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E-535 copolymer and PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E- 335 copolymer. In general, PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) copolymer is less hygroscopic than PVP.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) copolymers are widely used for their excellent film forming properties in the following applications and markets:

In hot melt adhesives, PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) copolymers are used in a variety of water remoistenable or water removable adhesives as listed

below. Here they offer the formulators performance advantages in film flexibility, adhesiveness and water remoistenability.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) copolymers are also used in coatings for ink-jet media including paper, plastic films and other substrates to enhance dye receptivity. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) S-630 copolymer is used as a binder to allow the aqueous processing of photoresists.

Storage and handling

the range of 50-55°F (10-13°C) and are classified as flammable (DOT Flammable) materials. For safety reasons and to prevent moisture pickup due to drum breathing with changes in temperature, store in a dry place below 100°F (38°C) and repack or use in explosion- proof facilities.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) polymers produce transparent, flexible, oxygen permeable films which adhere to glass, plastics and metals.

The PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E- and I-series

To fit more application areas, the E- and I-series of PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) copolymers are available as 50% solutions in ethanol and in isopropanol**, respectively. There are four distinct copolymers in the E group: E-335, E-535, E-635, E-735, and three in the I group: I-335, I-535, I-735. Each differs in monomer ratio, and therefore in properties – water sensitivity, viscosity, softening point, etc. This affords formulators considerable flexibility in creating new products for specific applications. The transparent films formed by all of these copolymers are characterized by adhesion, luster, hardness and water rewettability. Good compatibility with many modifiers and plasticizers permits wide freedom in formulation and broadens the range of hygroscopicity, film flexibility and abrasion resistance. Unmodified copolymers having the lower ratios of vinylpyrrolidone to vinyl acetate exhibit more moisture resistance than products with high ratios of VP to VA.

The PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) W copolymers

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) W-735 is a 70/30 copolymer of PVP and vinyl acetate supplied as a 50% solution in water. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) W-635 is a 60/40 copolymer also supplied as a 50% aqueous solution. They are ideal nonionic fixative resins for alcohol-free mousses and gels. They offer formulators outstanding curl and style retention properties without build-up, flaking or dulling of hair.

Plasticizers and polymers: Most PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) copolymers are compatible with a variety of nonionic and cationic polymers. Compatibility with anionic copolymers can be achieved through neutralization prior to mixing.

Hygroscopicity of films: The inherent water sensitivity of PVP/ VA copolymer films varies with the monomer ratio. Typical data are shown below for PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E-735, PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E-535 and PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E-335. In general, PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) is less hygroscopic than PVP.

Abstract

In this study, the influence of copolymer composition on drug-polymer solubility was investigated. The solubility of the model drug celecoxib (CCX) in various polyvinylpyrrolidone/vinyl acetate (PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)) copolymer compositions (70/30, 60/40, 50/50 and 30/70 w/w) and the pure homopolymers polyvinylpyrrolidone (PVP) and polyvinyl acetate (PVA) was predicted at 25 °C using a thermal analysis method based on the recrystallization of a supersaturated amorphous dispersion (recrystallization method). These solubilities were compared with a prediction based on the solubility of CCX in the liquid monomeric precursors of PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), N-vinylpyrrolidone (NVP) and vinyl acetate (VA), using the Flory-Huggins lattice theory (liquid monomer solubility approach).

The solubilities predicted from the liquid monomer solubility approach increased linearly with increasing VP/VA ratio from 0.03-0.60 w/w. Even though the solubilities predicted from the recrystallization method also increased with increasing VP/VA ratio from 0.02-0.40 w/w, the predicted solubility seemed to approach a plateau at high VP/VA ratios.

Increasing positive deviations from the Gordon-Taylor equation with increasing VP/VA ratio indicated strong interactions between CCX and the VP repeat unit, which was in accordance with the relatively high solubilities predicted using both methods.

As the solubility plateau may be a consequence of steric hindrance caused by the size differences between CCX and the VP repeat units, it is likely that a CCX molecule interacting with a VP repeat unit hinders another CCX molecule from binding to the neighboring repeat units in the polymer chain.

Therefore, it is possible that replacing these neighboring hygroscopic VP repeat units with hydrophobic VA repeat units, could increase the physical stability of an amorphous solid dispersion without compromising the drug-polymer solubility. This knowledge could be used advantageously in future development of amorphous drug delivery systems as copolymers could be customized to provide optimal drug-polymer solubility and physical stability.

PVP/VA Copolymer. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) acts as a film forming agent. It forms transparent, flexible and oxygen permeable films which adhere to glass, plastic and metal. It offers strong & stiff hold, enhanced high humidity curl retention and good propellant compatibility. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) finds application in formulating alcohol-free and hair care products like hairsprays, colorants, mousses, gels, styling lotions/creams and novelty stylers. It is a 50% solution of linear and random polyvinylpyrrolidone/vinyl acetate (PVP/VA) copolymer in water. It is produced by the free-radical polymerization of monomers in the ratio of 60/40 (VP/VA).

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) thermoplastic, linear, random vinylpyrrolidone/vinylacetate copolymer. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) used in industrial, specialty and imaging coatings, printing inks and paints. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) provides transparency, flexibility, oxygen permeability and adhesion to glass, plastics and metals.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) is produced industrially by vinylation of 2-pyrrolidone, i.e. the base-catalyzed reaction with acetylene.[2] PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) is the precursor to polyvinylpyrrolidone (PVP), an important synthetic material. The PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) monomer is commonly used as a reactive diluent in ultraviolet and electron-beam curable polymers applied as inks, coatings or adhesives.[2] Polyvinylpyrrolidone (PVP), also commonly called polyvidone or povidone, is a water-soluble polymer made from the monomer N-vinylpyrrolidone.[1]

What is PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) Copolymer?

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) (also known as Polyvinylpyrrolidone) was the main ingredient in the first really successful hairsprays in the early 1950s. This polymer worked as a hairspray because it was soluble in water. This meant it could be rinsed out when you wash your hair. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) tended to absorb water out of the air, giving hair that tacky look that was so common in the sixties.

Unfortunately no one was aware of the dangers that came with this Polymer. If particles of PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) Copolymer are inhaled, it can cause damage to the lungs in sensitive individuals. It can be considered toxic, since particles may contribute to foreign bodies in the lungs of people. Up until a few years ago, this ingredient was considered safe to use however now it is definitely an ingredient that is better to avoid.

The PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E and I copolymer Series

To fit many application areas, the E and I series of PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) copolymers are available as 50% solutions in ethanol and in isopropanol2, respectively. There are four distinct copolymers in the E group: E- 335, E-535, E-735, E-735, and three in the I group: 1-335, 1-535, 1-735. Each differs in monomer ratio and, therefore, in properties – water sensitivity, viscosity, softening point, etc.

Storage and handling

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) copolymers are stable for at least one year under normal conditions of storage but strict precautions should be taken to avoid moisture pickup. The E and I series have flash points in the range of 50-55°F (10-13°C) and are classified as flammable (DOT Flammable) materials. For safety reasons and to prevent moisture pickup due to drum breathing with changes in temperature, store in a dry place below 100°F (38°C) and repack or use in explosion- proof facilities.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) polymers produce transparent, flexible, oxygen permeable films which adhere to glass, plastics and metals.

The PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E- and I-series

To fit more application areas, the E- and I-series of PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) copolymers are available as 50% solutions in ethanol and in isopropanol**, respectively. There are four distinct copolymers in the E group: E-335, E-535, E-735, E-735, and three in the I group: I-335, I-535, I-735. Each differs in monomer ratio, and therefore in properties – water sensitivity, viscosity, softening point, etc. This affords formulators considerable flexibility in creating new products for specific applications. The transparent films formed by all of these copolymers are characterized by adhesion, luster, hardness and water rewettability. Good compatibility with many modifiers and plasticizers permits wide freedom in formulation and broadens the range of hygroscopicity, film flexibility and abrasion resistance. Unmodified copolymers having the lower ratios of vinylpyrrolidone to vinyl acetate exhibit more moisture resistance than products with high ratios of VP to VA.

The PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) W copolymers

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) W-735 is a 70/30 copolymer of PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) and vinyl acetate supplied as a 50% solution in water. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) W-735 is a 60/40 copolymer also supplied as a 50% aqueous solution. They are ideal nonionic fixative resins for alcohol-free mousses and gels. They offer formulators outstanding curl and style retention properties without build-up, flaking or dulling of hair. Plasticizers and polymers: Most PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) copolymers are compatible with a variety of nonionic and cationic polymers. Compatibility with anionic copolymers can be achieved through neutralization prior to mixing.

Uses Medical

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) was used as a plasma volume expander for trauma victims after the 1950s.It is not preferred as volume expander due to its ability to provoke histamine release and also interfere with blood grouping.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) is used as a binder in many pharmaceutical tablets;[2] it simply passes through the body when taken orally. (However, autopsies have found that crospovidone (PVPP) contributes to pulmonary vascular injury in substance abusers who have injected pharmaceutical tablets intended for oral consumption.[3] The long-term effects of crospovidone or povidone within the lung are unknown.)

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) added to iodine forms a complex called povidone-iodine that possesses disinfectant properties.[4] This complex is used in various products like solutions, ointment, pessaries, liquid soaps and surgical scrubs. It is known under the trade names Pyodine and Betadine, among a plethora of others.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) is used in pleurodesis (fusion of the pleura because of incessant pleural effusions). For this purpose, povidone iodine is equally effective and safe as talc, and may be preferred because of easy availability and low cost.[5]

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) is used in some contact lenses and their packaging solutions. It reduces friction, thus acting as a lubricant, or wetting agent, built into the lens.

Technical

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) is used in as an adhesive in glue stick and hot-melt adhesives

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) is used in as a special additive for batteries, ceramics, fiberglass, inks, and inkjet paper, and in the chemical-mechanical planarization process

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) is used in as an emulsifier and disintegrant for solution polymerization

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) is used in increase resolution in photoresists for cathode ray tubes (CRT)[9] PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) is used in aqueous metal quenching

for production of membranes, such as dialysis and water purification filters PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) is used in as a binder and complexation agent in agricultural applications such as crop protection, seed treatment and coating PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) is used in as a thickening agent in tooth whitening gels[10] PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) is used in as an aid for increasing the solubility of drugs in liquid and semi-liquid dosage forms (syrups, soft gelatine capsules) and as an inhibitor of recrystallisation

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) is used in as an additive to Doro’s RNA extraction buffer PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) is used in as a liquid-phase dispersion enhancing agent in DOSY NMR [11]

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) is used in as a surfactant, reducing agent, shape controlling agent and dispersant in nanoparticle synthesis and their self-assembly[12]

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) is used in as a stabilizing agent in all inorganic solar cells[13]

Other uses PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) binds to polar molecules exceptionally well, owing to its polarity. This has led to its application in coatings for photo-quality ink-jet papers and transparencies, as well as in inks for inkjet printers.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) is also used in personal care products, such as shampoos and toothpastes, in paints, and adhesives that must be moistened, such as old-style postage stamps and envelopes. It has also been used in contact lens solutions and in steel-quenching solutions.[14][15] PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) is the basis of the early formulas for hair sprays and hair gels, and still continues to be a component of some.

As a food additive, PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) is a stabilizer and has E number E1201. PVPP (crospovidone) is E1202. It is also used in the wine industry as a fining agent for white wine and some beers.

In molecular biology, PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) can be used as a blocking agent during Southern blot analysis as a component of Denhardt’s buffer. It is also exceptionally good at absorbing polyphenols during DNA purification. Polyphenols are common in many plant tissues and can deactivate proteins if not removed and therefore inhibit many downstream reactions like PCR.

In microscopy, PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) is useful for making an aqueous mounting medium.[16]

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) can be used to screen for phenolic properties, as referenced in a 2000 study on the effect of plant extracts on insulin production.[17]

Safety of PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)

The U.S. Food and Drug Administration (FDA) has approved this chemical for many uses,[18] and it is generally considered safe. However, there have been documented cases of allergic reactions to PVP/povidone, particularly regarding subcutaneous (applied under the skin) use and situations where the PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) has come in contact with autologous serum (internal blood fluids) and mucous membranes. For example, a boy having an anaphylactic response after application of PVP-Iodine for treatment of impetigo was found to be allergic to the PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) component of the solution.[19] A woman, who had previously experienced urticaria (hives) from various hair products, later found to contain PVP, had an anaphylactic response after povidone-iodine solution was applied internally. She was found to be allergic to PVP.[20] In another case, a man experiencing anaphylaxis after taking acetaminophen tablets orally was found to be allergic to PVP.[21]

Povidone is commonly used in conjunction with other chemicals. Some of these, such as iodine, are blamed for allergic responses, although testing results in some patients show no signs of allergy to the suspect chemical. Allergies attributed to these other chemicals may possibly be caused by the PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) instead.[22][23]

Properties of PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) is soluble in water and other polar solvents. For example, it is soluble in various alcohols, such as methanol and ethanol,[24] as well as in more exotic solvents like the deep eutectic solvent formed by choline chloride and urea (Relin).[25] When dry it is a light flaky hygroscopic powder, readily absorbing up to 40% of its weight in atmospheric water. In solution, it has excellent wetting properties and readily forms films. This makes it good as a coating or an additive to coatings.

A 2014 study found fluorescent properties of PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) and its oxidized hydrolyzate.

History of PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) was first synthesized by Walter Reppe and a patent was filed in 1939 for one of the derivatives of acetylene chemistry. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) was initially used as a blood plasma substitute and later in a wide variety of applications in medicine, pharmacy, cosmetics and industrial production.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) polymers produce transparent, flexible, oxygen permeable films which adhere to glass, plastics and metals.

PVP/VA W-735 (Polivinilpirolidon Vinil Asetat)

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) Kopolimer Nedir?

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) Kopolimer ana saç bakm ürünlerinin çounda bulunan ve tutma faktörü salayan bileentir. Pek çok Hairsprray’de çok yaygndr; ayn zamanda jel, mum, pomat ve ekillendirici kremlerde bulunur. Petrolden elde edilen sentetik bir katk maddesidir.

PVP (ayn zamanda Polivinilpirolidon olarak da bilinir), 1950’lerin banda ilk baarl saç spreyinde kullanlan ana maddedir. Bu polimer suda çözünebildiinden saç spreyi olarak çalt. Bu, saçnz ykadnzda durulanabilecei anlamna geliyordu. PVP, 60’l yllarda o kadar yaygn olan saçlara yapkan bir görünüm kazandrarak havadaki su emme eilimindeydi.

Bu, polidimetilsiloksan ad verilen bir silikon olan baka bir polimer yardmyla sabitlendi. Bu silikonun daha iyi bir saç spreyi nasl hazrlandn anlamak için, saç spreyinin bata nasl çaltn anlamaya yardmc olur. Üzerine püskürtürken, polivinilpirolidon saç üzerinde ince bir kaplama oluturur. Bu kaplama katdr ve saçn etrafndan hareket etmesine engel olur. (Aadaki resme baknz)

Ne yazk ki hiç kimse bu Polimer ile gelen tehlikelerin farknda deildi. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) Kopolimer parçacklar solunursa hassas kiilerin akcierlerine zarar verebilir. Zehirli olduu düünülür, zira parçacklar insanlardaki akcierlerdeki yabanc cisimlere katkda bulunabilir. Birkaç yl öncesine kadar, bu madde kullanm güvenli kabul edildi ancak imdi kesinlikle önlenmesi daha iyi bir bileen.

Burada, bu bileeni ürünlerimizin herhangi birinde ve özellikle de Saç Spreyimizde kullanmyoruz. Greyfurt ve Lemon Grass Hairspray yalnzca size nazik deil, ayn zamanda aerosol kullanmayan ve çevre dostu bir tetik spreyine sahip olmas nedeniyle çevreye kar da nazik davranmaktadr. Bu güzel ürün doal bir UV koruyucusu içerir ve herhangi bir petro-kimyasal, plastik veya polimer anlamna gelmez. Bu nazik formül ayn zamanda göz ve saçl deri tahrileri anlamna gelmez.

Ashland, bir dizi vinilpirolidon / vinil asetat kopolimerini formülletiriciler sunmaktadr. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimer serisinin üyeleri, farkl derecelerde su direnci isteyen çeitli ürünlerdeki birincil film oluturucular olarak hizmet eder. Bu kopolimerler saç, cilt ve ahap, cam, kat ve metal gibi pürüzsüz yüzeyler için özel afiniteye sahiptir, ancak çkarma için çözücü gerektirmezler.

Film oluturucular olarak PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimerleri kullanmann avantajlar unlardr:

• film esneklii

• iyi yapma

• su geçirimsizlik

• sertlik

Bu özellikler PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimerlerini çeitli endüstriyel, kiisel bakm ve eczaclk ürünleri için uygundur. Ana endüstriyel uygulamalar, scakta eriyen yaptrclar, fotorezist balayclar ve mürekkep püskürtmeli ortam kad, plastik film ve dier yüzeyler için kaplamalardr.

• Dorusal, rastgele kopolimerler

• Vinil asetat içeriinin arttrlmas – hidrofobikliin arttrlmas, higroskopikliin azalmas, Tg’nin azaltlmas

• Cam, plastik ve metallere yapan hidrofilik, effaf, esnek termoplastik, oksijen geçirgen filmler

• Alkollerde, esterlerde ve ketonlarda çözünür, eterlerde ve alifatik hidrokarbonlarda çözünmez. VP içerii% 50’den fazla olduunda suda çözünür,

• Yapkan ve yapkan özellikler

• E = etanol (EtOH), I = izopropanol, W = su, S = kat

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E ve I kopolimer serisi

Birçok uygulama alanna uymak için, PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimerlerinin E ve I serileri srasyla etanol ve izopropanolde% 50 solüsyon olarak mevcuttur2. E grubunda dört ayr kopolimer vardr: E-335, E-535, E-635, E-735 ve I grubundaki üç: 1-335, 1-535, 1-735. Her biri monomer oran ve dolaysyla özelliklerde – su duyarll, viskozite, yumuama noktas vs. açsndan farkllk gösterir.

Bu, formüller, belirli uygulamalar için yeni ürünler yaratmada kayda deer esneklik salar. Bütün bu kopolimerlerin oluturduu effaf filmler yapma, parlaklk, sertlik ve suda slanabilme özellii ile karakterizedir. Pek çok modifikatör ve plastikletirici ile iyi uyumluluk, formülasyonda geni özgürlük salar ve higroskopiklik, film esneklii ve anma direnci araln geniletir. Vinil pirolidonun vinil asetata daha düük oranlara sahip olan modifiye edilmemi kopolimerler, yüksek oranlara sahip ürünlerden daha fazla nem direnci sergilemektedir.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) S kopolimeri

Beyaz, kokusuz bir toz olan PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) S-630 kopolimer, ayrca 60/40 VP / VA arlk orannda mevcuttur. Yaklak 70 ° C’lik bir minimum kritik çözelti scakl sergileyen, yüksek molekül arlkl, çözücü ve suda çözünür kopolimerdir. Çözeltilerden dökülen filmler parlak, yar effaf ve su ile slanabilinir.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) W kopolimerleri S

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) W-735 kopolimer, suda% 50’lik bir solüsyon olarak verilen PVP ve vinil asetatn bir 70/30 kopolimeridir. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)-

W-635 kopolimeri ayrca% 50 sulu çözelti halinde temin edilen bir 60/40 kopolimerdir.

VA (vinil asetat), VP (vinilpirolidon) ‘dan daha hidrofobik bir moleküldür. Bu nedenle, kopolimerin VA içeriinin artmas, hidrofobikliin artmasna ve dolaysyla VP homopolimerine kyasla suda çözünürlüün ve higroskopikliin azalmasna neden olur.

Plastikletiriciler ve Polimerler: Çou PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimeri, çeitli noniyonik ve katyonik polimerlerle uyumludur. Anyonik kopolimerlerle olan uyumluluk, kartrmadan önce nötrletirme yoluyla elde edilebilir.

Filmlerin Higroskopiklii: PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimer filmlerinin doal su hassasiyeti monomer oran ile deiir. Tipik veriler PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E-735 kopolimer, PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E-535 kopolimer ve PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E- 335 kopolimeri için aada gösterilmitir. Genel olarak, PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimeri PVP’den daha az higroskopiktir.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimerleri, aadaki uygulamalarda ve pazarlarda mükemmel film oluturma özellikleri için yaygn olarak kullanlmaktadr:

Scakta eriyen yaptrclarda, PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimerleri, listelenen çeitli suya dayankl veya sudan çkartlabilir yapkanlarda

altnda. Burada, formüle edicilere, film esneklii, yapkanlk ve sudan uzak tutma yeteneinde performans avantajlar sunuyoruz.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimerleri, boya alcln artrmak için kat, plastik filmler ve dier substratlar dahil olmak üzere mürekkep püskürtme ortamlar için kaplamalarda da kullanlr. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) S-630 kopolimer, fotorezistlerin sulu ilenmesine izin vermek için bir birletirici olarak kullanlr.

Depolama ve tama

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimerleri normal depolama koullarnda en az bir yl istikrarldr, ancak nem almn önlemek için kat önlemler alnmaldr. E ve I serilerinde parlama noktalar var.

50-13 ° C (50-55 ° F) aralnda yanc (DOT Yanc) malzemeler olarak snflandrlmtr. Güvenlik nedenlerinden ötürü ve scaklk deiiklikleri ile birlikte davulun solunmas nedeniyle nem almn önlemek için 100 ° F’n (38 ° C) altnda kuru bir yerde saklayn ve patlamaya dayankl tesislerde yeniden paketleyin veya kullann.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) polimerler cam, plastik ve metallere yapan effaf, esnek, oksijen geçirgen filmler üretirler.

Polivinilpirolidon / vinil asetat (PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)) reçineler, monomerlerin, 70 / 30’dan 30 / 70’e kadar vinil asetattan vinilpirolidona kadar deien oranlarda serbest radikal polimerizasyonu ile üretilen dorusal, rasgele kopolimerlerdir.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimerleri, etanol, izopropanol ve suda beyaz tozlar veya berrak çözeltiler halinde mevcuttur. Dört aralktaki vinilpirrolidon içeriindeki polimerler (30, 50, 60 ve yüzde 70) etanol veya izopropanol içinde üretilir. % 60 ve% 70 vinilpirrolidon içeriine sahip olan PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimerler kat veya% 50 sulu çözeltiler olarak mevcuttur.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E- ve I-serisi

Daha fazla uygulama alanna uymak için, E- ve I serisi PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimerleri srasyla etanol ve izopropanol ** içerisinde% 50 solüsyon olarak mevcuttur. E grubunda dört farkl kopolimer vardr: E-335, E-535, E-635, E-735 ve I gruptaki üç: I-335, I-535, I-735. Her biri monomer oran ve dolaysyla özelliklerde – su duyarll, viskozite, yumuama noktas vb. Açsndan farkllk gösterir. Bu, formülletiricilere özel uygulamalar için yeni ürünler yaratmada önemli esneklik salar. Bütün bu kopolimerlerin oluturduu effaf filmler yapma, parlaklk, sertlik ve suda slanabilme özellii ile karakterizedir. Pek çok deitirici ve plastikletirici ile iyi uyumluluk, formülasyonda geni özgürlük salar ve higroskopiklik, film esneklii ve anma direnci araln geniletir. Vinil pirolidonun vinil asetata oranlan daha düük oranlara sahip olan modifiye edilmemi kopolimerler, VP’ye oranla VA’ya oranla daha fazla nem direnci sergilemektedir.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) W kopolimerleri

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) W-735, suda% 50’lik bir solüsyon olarak verilen PVP ve vinil asetatn bir 70/30 kopolimeridir. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) W-635,% 50 sulu çözelti halinde verilen 60/40 kopolimerdir. Alkolsüz köpükler ve jeller için ideal noniyonik fiksatif reçinelerdir. Formülatörlere, birikim, saç dökülme veya saç dökülme olmakszn olaanüstü kvrm ve stil tutma özellikleri sunar.

Plastikletiriciler ve polimerler: Çou PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimeri, çeitli noniyonik ve katyonik polimerlerle uyumludur. Anyonik kopolimerlerle olan uyumluluk, kartrmadan önce nötrletirme yoluyla elde edilebilir.

Filmlerin higroskopiklii: PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimer filmlerinin doal su hassasiyeti, monomer oran ile deiir. Tipik veriler aada PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E-735, PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E-535 ve PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E-335 için gösterilmitir. Genel olarak, PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), PVP’den daha az higroskopiktir.

Endüstriyel: Scakta eriyen yaptrclarda, PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimerleri çeitli suda

Tekrar kapanabilir veya suyla çkarlabilir yapkanlar. Burada teklif ediyorlar

Film esneklii, yapkanlk ve suda formülatör performans avantajlar

remoistenability.

Su Geçirmez Yapkanl PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) Tipi Yaptrclar

• Solvent bazl formülasyonlar E- ve I-serisi

• Scak eriyik S-630

• Scak eriyik, basnca duyarl, tekrar tekrar sarlabilir S-630

Zehirlilik verileri

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimer ailesinin üyeleri çok sayda Hayvanlarda ve insan derisinde akut, alt-kronik ve kronik toksisite çalmalar Klinik test. Sonuçlar, bu kopolimerlerin düük bir Akut oral toksisite ve ne birincil dermal tahri edici ne de duyarllatrc maddeler deildir. Alkol içindeki kopolimerlerin birincil göz tahrii çalmalar minimal gösteriyor Alkol nedeniyle tavanda iddetli tahrie neden olabilir. Kronik çalmalar gösteriyor Hem fare hem de sçanlarda oral uygulamay takiben hiçbir olumsuz etki ve Tavanda ve hamsterde teneffüs.

Bu çalmada, kopolimer kompozisyonunun ilaç-polimer çözünürlüü üzerindeki etkisi aratrlmtr. Çeitli polivinilpirolidon / vinil asetat (PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)) kopolimer bileimlerinde (70/30, 60/40, 50/50 ve 30/70 w / w) ve saf homopolimer polivinilpirolidonda (PVP) celecoxib modelinin (CCX) çözünürlüü ) Ve polivinil asetat (PVA), ar doymam amorf bir dispersiyonun (yeniden kristalletirme yöntemi) yeniden kristalletirilmesine dayanan bir termal analiz yöntemi kullanlarak 25 ° C’de öngörülmütür. Bu çözünürlükler, Flory-Huggins kafes teorisini (sv monomer çözünürlük yaklam) kullanarak PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), N-vinilpirolidon (NVP) ve vinil asetatn (VA) sv monomerik öncüllerinde CCX’in çözünürlüüne dayanan bir tahminle karlatrlmtr.

Sv monomer çözünürlük yaklamndan tahmin edilen çözünürlükler, artan VP / VA oran ile 0.03-0.60 w / w arasnda dorusal olarak artt. Yeniden kristalletirme yönteminden tahmin edilen çözünürlükler, VP / VA orannn 0.02-0.40 w / w arttkça artmasna ramen, tahmin edilen çözünürlük, yüksek VP / VA oranlarnda bir platoya yaklam gibiydi.

Gordon-Taylor denkleminden artan VP / VA oranndaki artan olumlu sapmalar, CCX ve VP tekrarlama birimi arasnda, her iki yöntemle de öngörülen nispeten yüksek çözünürlüklere uygun güçlü etkileimleri gösterdi.

Çözünürlük platosu, boyutun neden olduu sterik engelin bir sonucu olabilir.

Çözünürlük platosu CCX ve VP tekrar üniteleri arasndaki boyut farkllklarnn neden olduu sterik engelin bir sonucu olabileceinden, bir VP tekrar ünitesi ile etkileen bir CCX molekülünün, baka bir CCX molekülünü komu tekrar ünitelerine balanmasn engellemektedir Polimer zinciri.

Bu nedenle, bu komu higroskopik VP tekrar birimlerinin hidrofobik VA tekrar birimleriyle deitirilmesinin, ilaç-polimer çözünürlüünden ödün vermeden amorf bir kat dalmn fiziksel kararlln artrabilecei mümkündür. Bu bilgi, amorf ilaç verme sistemlerinin gelecekteki geliiminde avantajl bir ekilde kullanlabilir; çünkü kopolimerler en uygun ilaç-polimer çözünürlüü ve fiziksel stabilite salamak üzere özelletirilebilirler.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)

PVP/VA tipleri, saç fixative (sabitleyici) olarak özellikle aerosol spreylerinde, pompa spreylerinde, sv ürünlerde, mousse’ler ve jellerde kullanlan non-iyonik, polimerik film oluturucu ajanlardr.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)termoplastik, lineer, random vinilpyrrolidone/vinylacetate kopolimeridir. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)endüstriyel, özel ve görüntülü kaplamalarda, bask mürekkeplerinde ve boyalarda kullanlr. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)cam, plastik ve metallere transparanlk, esneklik, oksijen geçirgenlii ve adezyon kazandrr.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)kopolimeri alkolsüz saç bakm ürünlerinde yaygn olarak kullanlr. Sabitletirici ve firim oluturucu gibi davranr. VP/VA kopolimeri sert, parlak ve su uzaklatrc filmler oluturur. Pek çok modifiye edici ve plastikletiriciyle uyumludur. Polivinilpirolidon, PVP, poli(N-vinil-2-pirolidon),PVP/VA W-735, Albigen, Isoplasma gibi isimlere sahiptir. Suyun dnda pek çok organik svda da çözünür. PVP özellikle birkaç sebepten dolay çok ilginçtir. Biyolojik açdan büyük bir öneme sahiptir; yaps proteinlere benzediinden dolay bilimsel çalmalarda basit bir model olmaktadr. Fizyolojik olarak inaktif olan (toksitesi yok ya da çok az) PVP, ilk olarak ikinci dünya sava esnasnda Almanya’da gelitirilmitir. % 2,5’luk tuz çözeltisi, Periston olarak adlandrlr, kan yokluunda kan yerine hastalara verilebilmektedir; Almanya’da savata kann % 50’si yerine bu çözelti uygulanmtr.

Polivinilpirolidon, PVP/VA W-735: N-vinil-2-pirolidon’un polimerlemesiyle elde edilir. Tutkal, merubat, kozmetik ve deterjan yapmnda, litografide, medikal uygulamalarda, kat üretiminde, farmosetiklerde, fotorafçlkta ve tekstilde kullanlr PVP, ikinci dünya savanda kullanlarak yüzlerce askere hayat vermesiyle birlikte, klinik uygulamalarda plazma artrc olarak faydalanlmaktadr ve toksik etkisi yine çok düüktür. Poli[N-(2-hidroksipropil)metakrilamit] (pHPMA) kopolimerleri, son yllarda yaygn biçimde kullanlmaktadr ve imdiye kadarki kanserli hastalarla yaplan çalmalarda herhangi bir toksik etkisine rastlanmamtr PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)W-Serisi kopolimerler, 30/70 ila 40/60 vinil asetat (VA) ila vinilpirolidon (VP) arasnda deien monomerlerin serbest radikal polimerizasyonu ile üretilen dorusal, rastgele kopolimerlerdir.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)Kopolimer Nedir?

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)Kopolimer ana saç bakm ürünlerinin çounda bulunan ve tutma faktörü salayan bileentir. Pek çok Hairsprray’de çok yaygndr; ayn zamanda jel, mum, pomat ve ekillendirici kremlerde bulunur. Petrolden elde edilen sentetik bir katk maddesidir.

Ne yazk ki hiç kimse bu Polimer ile gelen tehlikelerin farknda deildi. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)Kopolimer parçacklar solunursa hassas kiilerin akcierlerine zarar verebilir. Zehirli olduu düünülür, zira parçacklar insanlardaki akcierlerdeki yabanc cisimlere katkda bulunabilir. Birkaç yl öncesine kadar, bu madde kullanm güvenli kabul edildi ancak imdi kesinlikle önlenmesi daha iyi bir bileen.

Bu özellikler PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)kopolimerlerini çeitli endüstriyel, kiisel bakm ve eczaclk ürünleri için uygundur. Ana endüstriyel uygulamalar, scakta eriyen yaptrclar, fotorezist balayclar ve mürekkep püskürtmeli ortam kad, plastik film ve dier yüzeyler için kaplamalardr.

VP / VA Kopolimer. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) bir film oluturucudur. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), 70/30 (VP / VA) orannda monomerlerin serbest radikal polimerizasyonu ile üretilir. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), güçlü ve sert tutu, gelimi yüksek nem kvrlma tutuu ve iyi itici uyumluluu sunar. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), alkol içermeyen ve saç spreyleri, renklendiriciler, köpükler, jeller, ekillendirici losyonlar / kremler ve yeni ekillendiriciler gibi saç bakm ürünlerinin formüle edilmesinde uygulama bulur. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), suda dorusal ve rastgele polivinilpirolidon / vinil asetat (PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)) kopolimerinin% 50’lik bir çözeltisidir. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) cama, plastie ve metale yapan effaf, esnek ve oksijen geçirgen filmler oluturur.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), 70/30 VP / VA orannda monomerler üzerinde serbest radikal polimerizasyonu ile üretilen bir film oluturucudur. Suda% 50 dorusal ve rasgele polivinilpirolidon / vinil asetat (PVP / VA) kopolimer çözeltisidir. PVP / VA W-Serisi kopolimerler, 30/70 ila 40/60 vinil asetat (VA) ile vinilpirolidon (VP) arasnda deien monomerlerin suda salanan serbest radikal polimerizasyonu ile üretilen dorusal, rastgele kopolimerlerdir.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) polimerleri cama, plastiklere ve metallere yapan effaf, esnek, oksijen geçirgen filmler üretir.

Polivinilpirolidon / vinil asetat (PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)) reçineleri, 70/30 ila 30/70 vinil asetat ile vinilpirolidon arasnda deien oranlarda monomerlerin serbest radikal polimerizasyonu ile üretilen dorusal, rastgele kopolimerlerdir.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimerleri etanol, izopropanol ve su içinde beyaz tozlar veya berrak solüsyonlar olarak mevcuttur. Vinilpirolidon içeriinin dört aralndaki polimerler (yüzde 30, 50, 60 ve 70) etanol veya izopropanol içinde üretilir. Yüzde 60 ve 70 vinilpirolidon içerikli PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimerleri kat veya yüzde 50 sulu çözelti olarak mevcuttur.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) Kopolimer nedir?

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) Kopolimer, tutunma faktörünü salayan çou yaygn saç bakm ürününde bulunan bileendir. Bu yüzden çou Saç spreyinde çok yaygndr, ancak ayn zamanda jellerde, ada, pomatlarda ve ekillendirici kremlerde de bulunur. Petrolden elde edilen sentetik bir bileendir.

PVP (Polivinilpirolidon olarak da bilinir), 1950’lerin balarnda gerçekten baarl olan ilk saç spreylerinin ana maddesiydi. Bu polimer, suda çözünür olduu için saç spreyi olarak çalt. Bu, saçnz ykarken durulanabilecei anlamna geliyordu. PVP, havadaki suyu emme eilimindeydi ve saça altmlarda çok yaygn olan o yapkan görünümü verdi.

Bu, polidimetilsiloksan ad verilen bir silikon olan baka bir polimerin yardmyla sabitlendi. Bu silikonun nasl daha iyi bir saç spreyi yaptn anlamak, ilk olarak saç spreyinin nasl çaltn anlamaya yardmc olur. Üzerine püskürttüünüzde, polivinilpirolidon saç üzerinde ince bir tabaka oluturur. Bu kaplama serttir ve saçn hareket etmesini engeller. (Aadaki resme bakn)

Ne yazk ki hiç kimse bu Polimer ile gelen tehlikelerin farknda deildi. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) Kopolimer partikülleri solunursa, hassas kiilerde akcierlere zarar verebilir. Zehirli kabul edilebilir çünkü partiküller, insanlarn akcierlerindeki yabanc cisimlere katkda bulunabilir. Birkaç yl öncesine kadar, bu bileenin kullanmnn güvenli olduu düünülüyordu, ancak imdi kesinlikle kaçnlmas daha iyi bir bileendir.

Burada, bu bileeni HÇBR ürünümüzde ve özellikle Saç Spreyimizde kullanmyoruz. Greyfurt ve Limon Otu Saç Spreyimiz size sadece nazik olmakla kalmaz, ayn zamanda aerosol içermeyen ve bunun yerine çevre dostu tetikleyici bir sprey içerdiinden çevreye de naziktir. Bu güzel ürün, doal bir UV koruyucu ve tutma faktörü içerir, bu da petro-kimyasal, plastik veya polimer olmad anlamna gelir. Bu nazik formül ayn zamanda artk göz ve kafa derisinde tahri olmamas anlamna da gelir.

Ashland, formülatörlere bir dizi vinilpirolidon / vinil asetat kopolimeri sunmaktadr. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimer serisinin üyeleri, farkl derecelerde su direnci talep eden çeitli ürünlerde birincil film oluturucu görevi görür. Bu kopolimerler saç, cilt ve ahap, cam, kat ve metal gibi pürüzsüz yüzeyler için özel afiniteye sahiptir, ancak çkarlmas için çözücülere ihtiyaç duymazlar.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E ve I kopolimer Serisi

Pek çok uygulama alanna uymas için, E ve I serisi PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimerleri srasyla etanol ve izopropanol2 içinde% 50 çözelti olarak mevcuttur. E grubunda dört farkl kopolimer vardr: E- 335, E-535, E-635, E-735 ve I grubunda üç tane: 1-335, 1-535, 1-735. Her biri monomer orannda ve dolaysyla özelliklerde farkllk gösterir – su hassasiyeti, viskozite, yumuama noktas vb.

Bu, formülatörlere belirli uygulamalar için yeni ürünler yaratmada önemli ölçüde esneklik salar. Tüm bu kopolimerler tarafndan oluturulan effaf filmler, yapma, parlaklk, sertlik ve su yeniden slanabilirlik ile karakterize edilir. Birçok deitirici ve plastikletirici ile iyi uyumluluk, formülasyonda geni bir serbestlik salar ve higroskopiklik, film esneklii ve anma direnci araln geniletir. Vinilpirolidonun vinil asetata daha düük oranlarna sahip olan deitirilmemi kopolimerler, yüksek oranl ürünlere göre daha fazla nem direnci sergilemektedir.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) S kopolimeri

Beyaz, kokusuz bir toz olan PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) S-630 kopolimer de 60/40 VP / VA arlk orannda mevcuttur. Minimum kritik çözelti scakl yaklak 70 ° C olan, yüksek moleküler arlkl, çözücü ve suda çözünür bir kopolimerdir. Çözeltilerden dökülen filmler parlak, yar saydamdr ve su ile yeniden slanabilir.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) W kopolimerleri

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) W-735 kopolimeri, suda% 50 çözelti olarak salanan 70/30 PVP ve vinil asetat kopolimeridir. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)

W-635 kopolimer, ayrca% 50 sulu çözelti olarak salanan 60/40 kopolimerdir.

VA (vinil asetat), VP’den (vinilpirolidon) daha hidrofobik bir moleküldür. Bu nedenle, kopolimerin artan VA içerii, hidrofobiklikte bir arta ve sonuç olarak VP homopolimerine göre suda çözünürlük ve higroskopide bir azalmaya neden olur.

Plastikletiriciler ve Polimerler: Çou PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimeri, çeitli noniyonik ve katyonik polimerlerle uyumludur. Anyonik kopolimerler ile uyumluluk, kartrmadan önce nötrletirme yoluyla salanabilir.

Filmlerin Higroskopiklii: PVP / VA kopolimer filmlerin doal su hassasiyeti monomer oranna göre deiir. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E-735 kopolimeri, PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E-535 kopolimeri ve PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E- 335 kopolimeri için tipik veriler aada gösterilmitir. Genel olarak, PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimeri, PVP’den daha az higroskopiktir.

Scakta eriyen yaptrclarda, PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimerleri, listelenen çeitli suyla yeniden nemlendirilebilir veya suyla çkarlabilir yaptrclarda kullanlr.

altnda. Burada formülatörlere film esneklii, yapkanlk ve suyun yeniden nemlendirilebilirliinde performans avantajlar sunarlar.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimerleri, boya alcln arttrmak için kat, plastik filmler ve dier substratlar dahil olmak üzere mürekkep püskürtmeli ortam kaplamalarnda da kullanlr. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) S-630 kopolimeri, fotorezistlerin sulu olarak ilenmesine izin vermek için balayc olarak kullanlr.

Saklama ve kullanma

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimerleri, normal depolama koullar altnda en az bir yl boyunca stabildir, ancak nem birikmesini önlemek için sk önlemler alnmaldr. E ve I serilerinin parlama noktalar var

50-55 ° F (10-13 ° C) aralndadr ve yanc (DOT Yanc) malzemeler olarak snflandrlr. Güvenlik nedenleriyle ve scaklk deiiklikleriyle birlikte tambur solunmas nedeniyle nem birikmesini önlemek için, 100 ° F (38 ° C) altnda kuru bir yerde saklayn ve patlamaya dayankl tesislerde yeniden paketleyin veya kullann.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) polimerleri cama, plastiklere ve metallere yapan effaf, esnek, oksijen geçirgen filmler üretir.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimerleri etanol, izopropanol ve su içinde beyaz tozlar veya berrak solüsyonlar olarak mevcuttur. Vinilpirolidon içeriinin dört aralndaki polimerler (yüzde 30, 50, 60 ve 70) etanol veya izopropanol içinde üretilir. Yüzde 60 ve 70 vinilpirolidon içeriine sahip PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimerleri kat veya yüzde 50 sulu çözelti olarak mevcuttur.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E- ve I-serisi

Daha fazla uygulama alanna uymas için, E- ve I-serisi PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimerleri srasyla etanol ve izopropanol ** içinde% 50 solüsyon olarak mevcuttur. E grubunda dört farkl kopolimer vardr: E-335, E-535, E-635, E-735 ve I grubunda üç tane: I-335, I-535, I-735. Her biri monomer oran ve dolaysyla özellikleri bakmndan farkllk gösterir – su hassasiyeti, viskozite, yumuama noktas, vb. Bu, formülatörlere özel uygulamalar için yeni ürünler yaratmada önemli ölçüde esneklik salar. Tüm bu kopolimerlerin oluturduu effaf filmler, yapma, parlaklk, sertlik ve yeniden slanabilirlik ile karakterize edilir. Pek çok deitirici ve plastikletirici ile iyi uyumluluk, formülasyonda geni özgürlük salar ve higroskopiklik, film esneklii ve anma direnci araln geniletir. Vinilpirolidonun vinil asetata daha düük oranlarna sahip olan deitirilmemi kopolimerler, yüksek VP / VA oranlarna sahip ürünlere göre daha fazla nem direnci sergiler.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) W kopolimerleri

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) W-735, suda% 50 çözelti olarak salanan PVP ve vinil asetatn 70/30 kopolimeridir. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) W-635,% 50 sulu çözelti olarak da salanan 60/40 kopolimerdir. Alkolsüz köpükler ve jeller için ideal noniyonik fiksatif reçinelerdir. Formül yapclara saçta birikme, dökülme veya matlama olmadan olaanüstü kvrlma ve stil tutma özellikleri sunarlar.

Plastikletiriciler ve polimerler: Çou PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimeri, çeitli noniyonik ve katyonik polimerlerle uyumludur. Anyonik kopolimerler ile uyumluluk, kartrmadan önce nötrletirme yoluyla salanabilir.

Filmlerin higroskopiklii: PVP / VA kopolimer filmlerin doal su hassasiyeti monomer oranna göre deiir. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E-735, PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E-535 ve PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E-335 için tipik veriler aada gösterilmitir. Genel olarak, PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), PVP’den daha az higroskopiktir.

Bu çalmada, kopolimer bileiminin ilaç-polimer çözünürlüüne etkisi aratrlmtr. Model ilaç selekoksibin (CCX) çeitli polivinilpirolidon / vinil asetat (PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)) kopolimer bileimlerinde (70/30, 60/40, 50/50 ve 30/70 w / w) ve saf homopolimerlerdeki çözünürlüü polivinilpirolidon (PVP) ve polivinil asetat (PVA), ar doymu bir amorf dispersiyonun yeniden kristalletirilmesine dayanan bir termal analiz yöntemi (yeniden kristalletirme yöntemi) kullanlarak 25 ° C’de tahmin edildi. Bu çözünürlükler, Flory-Huggins latis teorisi (sv monomer çözünürlük yaklamak).

Sv monomer çözünürlük yaklamndan tahmin edilen çözünürlükler, VP / VA orannn 0.03-0.60 w / w’den artmasyla dorusal olarak artt. Yeniden kristalletirme yönteminden tahmin edilen çözünürlükler, 0.02-0.40 w / w’den artan VP / VA oran ile artm olsa da, tahmin edilen çözünürlük, yüksek VP / VA oranlarnda bir platoya yaklayor gibi görünüyordu.

Gordon-Taylor denkleminden artan VP / VA oran ile artan pozitif sapmalar, her iki yöntem kullanlarak tahmin edilen nispeten yüksek çözünürlüklere uygun olarak, CCX ve VP tekrar birimi arasnda güçlü etkileimlere iaret etti.

Çözünürlük platosu, CCX ve VP tekrar birimleri arasndaki boyut farkllklarnn neden olduu sterik engelin bir sonucu olabileceinden, bir VP tekrar birimi ile etkileime giren bir CCX molekülünün, baka bir CCX molekülünün, içindeki komu tekrar birimlerine balanmasn engellemesi olasdr. polimer zinciri.

Bu nedenle, bu komu higroskopik VP tekrar birimlerinin hidrofobik VA tekrar birimleriyle deitirilmesinin, ilaç-polimer çözünürlüünden ödün vermeden amorf bir kat dispersiyonun fiziksel stabilitesini artrmas mümkündür. Kopolimerler optimal ilaç-polimer çözünürlüü ve fiziksel stabilite salayacak ekilde özelletirilebildiinden, bu bilgi amorf ilaç verme sistemlerinin gelecekteki gelitirilmesinde avantajl bir ekilde kullanlabilir.

PVP / VA Kopolimer. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), bir film oluturucu madde olarak ilev görür. Cam, plastik ve metale yapan effaf, esnek ve oksijen geçirgen filmler oluturur. Güçlü ve sert tutu, gelimi yüksek nem kvrlma tutuu ve iyi itici uyumluluu sunar. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), saç spreyleri, renklendiriciler, köpükler, jeller, ekillendirici losyonlar / kremler ve yeni ekillendiriciler gibi alkolsüz ve saç bakm ürünlerinin formüle edilmesinde uygulama bulur. Suda% 50 dorusal ve rasgele polivinilpirolidon / vinil asetat (PVP / VA) kopolimer çözeltisidir. Monomerlerin 60/40 (VP / VA) orannda serbest radikal polimerizasyonu ile üretilir.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) termoplastik, dorusal, rastgele vinilpirolidon / vinilasetat kopolimeri. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) endüstriyel, özel ve görüntülü kaplamalar, bask mürekkepleri ve boyalarda kullanlr. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) effaflk, esneklik, oksijen geçirgenlii ve cama, plastiklere ve metallere yapma salar.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) endüstriyel olarak 2-pirolidonun vinillenmesi, yani asetilen ile baz katalizli reaksiyonla üretilir. [2] PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), önemli bir sentetik malzeme olan polivinilpirolidonun (PVP) öncüsüdür. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) monomeri, mürekkep, kaplama veya yaptrc olarak uygulanan ultraviyole ve elektron nyla kürlenebilen polimerlerde reaktif bir seyreltici olarak yaygn olarak kullanlmaktadr. [2] Yaygn olarak polividon veya povidon olarak da adlandrlan polivinilpirolidon (PVP), monomer N-vinilpirolidondan yaplan suda çözünür bir polimerdir.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) Kopolimer nedir?

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) (Polivinilpirolidon olarak da bilinir) 1950’lerin balarnda gerçekten baarl olan ilk saç spreylerinin ana maddesiydi. Bu polimer, suda çözünür olduu için saç spreyi olarak çalt. Bu, saçnz ykarken durulanabilecei anlamna geliyordu. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), havadaki suyu emme eilimindeydi ve saça altmlarda çok yaygn olan yapkan bir görünüm kazandrd.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E ve I kopolimer Serisi

Pek çok uygulama alanna uymas için, E ve I serisi PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimerleri srasyla etanol ve izopropanol2 içinde% 50 çözelti olarak mevcuttur. E grubunda dört farkl kopolimer vardr: E- 335, E-535, E-735, E-735 ve I grubunda üç tane: 1-335, 1-535, 1-735. Her biri monomer orannda ve dolaysyla özelliklerde farkllk gösterir – su hassasiyeti, viskozite, yumuama noktas vb.

Saklama ve kullanma

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) polimerleri cama, plastiklere ve metallere yapan effaf, esnek, oksijen geçirgen filmler üretir.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E- ve I-serisi

Daha fazla uygulama alanna uymas için, E- ve I-serisi PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimerleri srasyla etanol ve izopropanol ** içinde% 50 solüsyon olarak mevcuttur. E grubunda dört farkl kopolimer vardr: E-335, E-535, E-735, E-735 ve I grubunda üç tane: I-335, I-535, I-735. Her biri monomer oran ve dolaysyla özellikleri bakmndan farkllk gösterir – su hassasiyeti, viskozite, yumuama noktas, vb. Bu, formülatörlere özel uygulamalar için yeni ürünler yaratmada önemli ölçüde esneklik salar. Tüm bu kopolimerlerin oluturduu effaf filmler, yapma, parlaklk, sertlik ve yeniden slanabilirlik ile karakterize edilir. Pek çok deitirici ve plastikletirici ile iyi uyumluluk, formülasyonda geni özgürlük salar ve higroskopiklik, film esneklii ve anma direnci araln geniletir. Vinilpirolidonun vinil asetata daha düük oranlarna sahip olan deitirilmemi kopolimerler, yüksek VP / VA oranlarna sahip ürünlere göre daha fazla nem direnci sergiler.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) W kopolimerleri

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) W-735, suda% 50 çözelti olarak salanan PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) ve vinil asetatn 70/30 kopolimeridir. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) W-735,% 50 sulu çözelti olarak da salanan 60/40 kopolimerdir. Alkolsüz köpükler ve jeller için ideal noniyonik fiksatif reçinelerdir. Formül yapclara saçta birikme, dökülme veya matlama olmadan olaanüstü kvrlma ve stil tutma özellikleri sunarlar.

Plastikletiriciler ve polimerler: Çou PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) kopolimeri, çeitli noniyonik ve katyonik polimerlerle uyumludur. Anyonik kopolimerler ile uyumluluk, kartrmadan önce nötrletirme yoluyla salanabilir.

Kullanmlar

Tbbi

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), 1950’lerden sonra travma madurlar için plazma hacim geniletici olarak kullanlmtr. Histamin salnmn provoke etme ve ayn zamanda kan gruplamasna müdahale etme özellii nedeniyle hacim geniletici olarak tercih edilmemektedir.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) birçok farmasötik tablette balayc olarak kullanlr; [2] azdan alndnda basitçe vücuttan geçer. (Bununla birlikte, otopsiler, krospovidonun (PVPP), oral tüketime yönelik farmasötik tabletleri enjekte eden madde bamllarnda pulmoner vasküler hasara katkda bulunduunu bulmutur. [3] Krospovidon veya povidonun akcier içindeki uzun vadeli etkileri bilinmemektedir.)

yoda eklenen PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), dezenfektan özelliklere sahip povidon-iyot ad verilen bir kompleks oluturur. [4] Bu kompleks, solüsyonlar, merhemler, peserler, sv sabunlar ve cerrahi frçalama gibi çeitli ürünlerde kullanlmaktadr. Dierleri arasnda Pyodine ve Betadine ticari isimleri altnda bilinir.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) plöredezde kullanlr (aralksz plevral efüzyonlar nedeniyle plevrann füzyonu). Bu amaçla povidon iyot, talk kadar eit derecede etkili ve güvenlidir ve kolay bulunabilirlii ve düük maliyeti nedeniyle tercih edilebilir. [5]

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), baz kontakt lenslerde ve bunlarn ambalajlama çözümlerinde kullanlr. Sürtünmeyi azaltr, böylece lensin içine yerletirilmi bir kayganlatrc veya slatc olarak ilev görür.

Teknik

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), stick stick ve hot-melt yaptrclarda yaptrc olarak kullanlr.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), piller, seramikler, fiberglas, mürekkepler ve mürekkep püskürtmeli katlar için özel bir katk maddesi olarak ve kimyasal-mekanik düzlemselletirme sürecinde kullanlr.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), çözelti polimerizasyonu için emülgatör ve parçalayc olarak kullanlr.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), katot n tüpleri (CRT) için fotorezistlerde çözünürlük artnda kullanlr [9]

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) sulu metal söndürmede kullanlr

diyaliz ve su artma filtreleri gibi membran üretimi için

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), mahsul koruma, tohum ileme ve kaplama gibi tarmsal uygulamalarda balayc ve kompleksletirici madde olarak kullanlr.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), di beyazlatma jellerinde kalnlatrc ajan olarak kullanlr [10]

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), sv ve yar sv dozaj formlarnda (uruplar, yumuak jelatin kapsüller) ilaçlarn çözünürlüünü artrmaya yardmc olarak ve yeniden kristalleme inhibitörü olarak kullanlr.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), Doro’nun RNA ekstraksiyon tamponuna katk maddesi olarak kullanlr [kaynak belirtilmeli]

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), DOSY NMR’de sv fazda dispersiyon arttrc ajan olarak kullanlr [11]

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), nanopartikül sentezinde ve bunlarn kendiliinden birlemesinde yüzey aktif madde, indirgeme ajan, ekil kontrol ajan ve datc olarak kullanlr [12]

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), tüm inorganik güne pillerinde stabilize edici ajan olarak kullanlr [13]

Dier kullanmlar

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), polaritesi nedeniyle polar moleküllere son derece iyi balanr. Bu, fotoraf kalitesinde mürekkep püskürtmeli katlar ve asetatlar için kaplamalarda ve ayrca mürekkep püskürtmeli yazclar için mürekkeplerde uygulanmasna yol açmtr.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) ayrca ampuanlar ve di macunlar gibi kiisel bakm ürünlerinde, eski tip posta pullar ve zarflar gibi nemlendirilmesi gereken boyalarda ve yaptrclarda da kullanlr. Kontakt lens çözümlerinde ve çelik söndürme çözümlerinde de kullanlmtr. [14] [15] PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), saç spreyleri ve saç jelleri için erken formüllerin temelidir ve hala bazlarnn bir bileeni olmaya devam etmektedir.

Bir gda katk maddesi olarak PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) bir dengeleyicidir ve E1201 E numarasna sahiptir. PVPP (krospovidon) E1202’dir. Ayrca arap endüstrisinde beyaz arap ve baz biralar için inceltici ajan olarak kullanlr.

Moleküler biyolojide, PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), Denhardt tamponunun bir bileeni olarak Southern blot analizi srasnda bloke edici bir ajan olarak kullanlabilir. Ayrca, DNA saflatrmas srasnda polifenolleri emmede son derece iyidir. Polifenoller birçok bitki dokusunda yaygndr ve uzaklatrlmadklar takdirde proteinleri devre d brakabilir ve bu nedenle PCR gibi birçok aa ak reaksiyonunu inhibe edebilir.

Mikroskopide, PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) sulu bir sabitleme ortam yapmak için kullanldr. [16]

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), bitki özlerinin insülin üretimi üzerindeki etkisi üzerine 2000 ylnda yaplan bir çalmada referans olarak verildii gibi, fenolik özellikleri taramak için kullanlabilir.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)’in Güvenlii

ABD Gda ve laç Dairesi (FDA) bu kimyasal birçok kullanm için onaylamtr [18] ve genellikle güvenli kabul edilir. Bununla birlikte, PVP / povidona kar, özellikle deri alt (deri altna uygulanan) kullanm ve PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)’in otolog serum (dahili kan svlar) ve mukoza zarlaryla temas ettii durumlar ile ilgili olarak belgelenmi alerjik reaksiyon vakalar vardr. . Örnein, impetigo tedavisi için PVP-yot uygulandktan sonra anafilaktik yant veren bir erkek çocuun, çözeltinin PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) bileenine alerjisi olduu bulundu. [19] Daha önce çeitli saç ürünlerinden ürtiker (kurdeen) yaayan ve daha sonra PVP içerdii tespit edilen bir kadn, dahili olarak povidon-iyot solüsyonu uygulandktan sonra anafilaktik yant ald. PVP’ye alerjisi olduu bulundu. [20] Baka bir vakada, asetaminofen tabletlerini azdan aldktan sonra anafilaksi yaayan bir erkein PVP’ye alerjisi olduu bulundu. [21]

Povidon, yaygn olarak dier kimyasallarla birlikte kullanlr. Baz hastalarda test sonuçlar üpheli kimyasala alerji belirtisi göstermemesine ramen, iyot gibi bunlardan bazlar alerjik tepkilerden sorumlu tutulmaktadr. Bu dier kimyasallara atfedilen alerjilere muhtemelen PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) neden olabilir. [22] [23]

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)’in Özellikleri

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), suda ve dier polar çözücülerde çözünür. Örnein, metanol ve etanol gibi çeitli alkollerde [24] ve kolin klorür ve üre (Relin) tarafndan oluturulan derin ötektik çözücü gibi daha egzotik çözücülerde çözünür. [25] Kuruduunda hafif pulsu higroskopik bir tozdur ve arlnn% 40’na kadar atmosferik su içinde kolaylkla emilir. Çözelti olarak, mükemmel slatma özelliklerine sahiptir ve kolayca filmler oluturur. Bu, onu bir kaplama veya kaplamalara katk maddesi olarak iyi klar.

2014 ylnda yaplan bir çalmada, PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)’in ve oksitlenmi hidrolizatnn floresan özellikleri bulundu.

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)’in Tarihçesi

PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) ilk olarak Walter Reppe tarafndan sentezlendi ve 1939’da asetilen kimyasnn türevlerinden biri için bir patent bavurusu yapld. PVP/VA W-735 (Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) balangçta bir kan plazmas ikamesi olarak ve daha sonra tp, eczaclk, kozmetik ve endüstriyel üretimde çok çeitli uygulamalarda kullanld.

PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone)

Copolymère VP / VA. PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) est un filmogène. PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) est produit par polymérisation radicalaire de monomères dans le rapport 70/30 (VP / VA). PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) offre une tenue solide et rigide, une meilleure rétention des boucles à humidité élevée et une bonne compatibilité avec les propulseurs. Le PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) trouve une application dans la formulation de produits de soins capillaires et sans alcool comme les laques, les colorants, les mousses, les gels, les lotions / crèmes coiffantes et les stylers novateurs. PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) est une solution à 50% de copolymère linéaire et statistique de polyvinylpyrrolidone / acétate de vinyle (PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)) dans l’eau. PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) forme des films transparents, flexibles et perméables à l’oxygène qui adhèrent au verre, au plastique et au métal.

PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) est un filmogène produit par polymérisation radicalaire sur des monomères dans un rapport 70/30 VP / VA. Il s’agit d’une solution à 50% de copolymère linéaire et statistique de polyvinylpyrrolidone / acétate de vinyle (PVP / VA) dans l’eau. Les copolymères PVP / VA série W sont des copolymères aléatoires linéaires produits par polymérisation radicalaire des monomères variant de 30/70 à 40/60 acétate de vinyle (VA) à vinylpyrrolidone (VP), fournis dans l’eau.

Les polymères PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) produisent des films transparents, flexibles et perméables à l’oxygène qui adhèrent au verre, aux plastiques et aux métaux.

Les résines polyvinylpyrrolidone / acétate de vinyle (PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)) sont des copolymères aléatoires linéaires produits par polymérisation radicalaire des monomères dans des rapports variant de 70/30 à 30/70 acétate de vinyle à vinylpyrrolidone.

Les copolymères PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) sont disponibles sous forme de poudres blanches ou de solutions claires dans l’éthanol, l’isopropanol et l’eau. Les polymères dans les quatre gammes de teneur en vinylpyrrolidone (30, 50, 60 et 70 pour cent), sont produits dans l’éthanol ou l’isopropanol. Les copolymères PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) avec une teneur en vinylpyrrolidone de 60 et 70 pour cent sont disponibles sous forme de solides ou de solutions aqueuses à 50 pour cent.

Qu’est-ce que le copolymère PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)? Le copolymère PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) est l’ingrédient présent dans la plupart des produits de soins capillaires traditionnels qui fournit le facteur de maintien. Il est donc très courant dans la plupart des laques, mais aussi dans les gels, les cires, les pommades et les crèmes coiffantes. C’est un ingrédient synthétique dérivé du pétrole. La PVP (également connue sous le nom de polyvinylpyrrolidone) était l’ingrédient principal des premiers laques pour cheveux vraiment réussis au début des années 1950. Ce polymère fonctionnait comme un laque pour cheveux car il était soluble dans l’eau. Cela signifiait qu’il pouvait être rincé lorsque vous vous lavez les cheveux. Le PVP avait tendance à absorber l’eau de l’air, donnant aux cheveux un aspect collant qui était si courant dans les années soixante.

Cela a été corrigé à l’aide d’un autre polymère, un silicone appelé polydiméthylsiloxane. Pour comprendre comment ce silicone a fait une meilleure laque pour les cheveux, il est utile de comprendre comment la laque fonctionne en premier lieu. Lorsque vous le vaporisez, la polyvinylpyrrolidone forme une fine couche sur les cheveux. Ce revêtement est rigide et empêche les cheveux de bouger.

Malheureusement, personne n’était conscient des dangers associés à ce polymère. L’inhalation de particules de PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) Copolymer peut provoquer des lésions pulmonaires chez les personnes sensibles. Il peut être considéré comme toxique, car les particules peuvent contribuer à la formation de corps étrangers dans les poumons des personnes. Jusqu’à il y a quelques années, cet ingrédient était considéré comme sûr à utiliser, mais il s’agit maintenant d’un ingrédient qu’il vaut mieux éviter.

Chez nous, nous n’utilisons cet ingrédient dans AUCUN de nos produits et surtout pas dans notre laque. Notre fixatif au pamplemousse et à la citronnelle est non seulement gentil avec vous, mais aussi respectueux de l’environnement en ne contenant pas d’aérosol et en ayant plutôt un spray à gâchette écologique. Ce beau produit contient un protecteur UV naturel et un facteur de maintien, ce qui signifie qu’il n’y a pas de produits pétrochimiques, plastiques ou polymères. Cette formule douce signifie également plus d’irritations des yeux et du cuir chevelu.

Ashland propose aux formulateurs une série de copolymères vinylpyrrolidone / acétate de vinyle. Les membres de la série de copolymères PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) servent de filmogène primaire dans une variété de produits exigeant différents degrés de résistance à l’eau. Ces copolymères présentent une affinité spécifique pour les cheveux, la peau et les surfaces lisses telles que le bois, le verre, le papier et le métal, mais ne nécessitent pas de solvants pour leur élimination.

Série de copolymères PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E et I Pour s’adapter à de nombreux domaines d’application, les séries E et I de copolymères PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) sont disponibles sous forme de solutions à 50% dans l’éthanol et dans l’isopropanol2, respectivement. Il existe quatre copolymères distincts dans le groupe E: E-335, E-535, E-635, E-735 et trois dans le groupe I: 1-335, 1-535, 1-735. Chacun diffère par le rapport des monomères et, par conséquent, par les propriétés – sensibilité à l’eau, viscosité, point de ramollissement, etc.

Cela offre aux formulateurs une flexibilité considérable dans la création de nouveaux produits pour des applications spécifiques. Les films transparents formés par tous ces copolymères sont caractérisés par leur adhérence, leur éclat, leur dureté et leur réhumidification à l’eau. Une bonne compatibilité avec de nombreux modificateurs et plastifiants permet une grande liberté de formulation et élargit la gamme d’hygroscopicité, de flexibilité du film et de résistance à l’abrasion. Les copolymères non modifiés ayant les rapports inférieurs de la vinylpyrrolidone à l’acétate de vinyle présentent une plus grande résistance à l’humidité que les produits ayant des rapports élevés.

Le copolymère PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) S

Le copolymère PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) S-630, une poudre blanche inodore, est également disponible à un rapport pondéral de 60/40 VP / VA. Il s’agit d’un copolymère soluble dans l’eau, solvant et de masse moléculaire élevée présentant une température de solution critique minimale d’environ 70 ° C. Les films coulés à partir de solutions sont brillants, translucides et rémouillables à l’eau.

Les copolymères PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) W

Le copolymère PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) W-735 est un copolymère 70/30 de PVP et d’acétate de vinyle fourni sous forme d’une solution à 50% dans l’eau. PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)

Le copolymère W-635 est un copolymère 60/40 également fourni sous forme de solution aqueuse à 50%.

VA (acétate de vinyle) est une molécule plus hydrophobe que VP (vinylpyrrolidone). Ainsi, l’augmentation de la teneur en VA du copolymère entraîne une augmentation de l’hydrophobicité et par conséquent une diminution de la solubilité dans l’eau et de l’hygroscopicité par rapport à l’homopolymère VP.

Plastifiants et polymères: La plupart des copolymères PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) sont compatibles avec une variété de polymères non ioniques et cationiques. La compatibilité avec les copolymères anioniques peut être obtenue par neutralisation avant le mélange.

Hygroscopicité des films: La sensibilité à l’eau inhérente des films de copolymère PVP / VA varie avec le rapport des monomères. Des données typiques sont présentées ci-dessous pour le copolymère PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E-735, le copolymère PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E-535 et le copolymère PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E-335. En général, le copolymère PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) est moins hygroscopique que le PVP.

Les copolymères PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) sont largement utilisés pour leurs excellentes propriétés filmogènes dans les applications et les marchés suivants:

Dans les adhésifs thermofusibles, les copolymères PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) sont utilisés dans une variété d’adhésifs réhydratables à l’eau ou amovibles à l’eau, comme indiqué.

au dessous de. Ici, ils offrent aux formulateurs des avantages de performance en termes de flexibilité du film, d’adhésivité et de réhumidification de l’eau.

Les copolymères PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) sont également utilisés dans les revêtements pour les supports à jet d’encre, y compris le papier, les films plastiques et d’autres substrats pour améliorer la réceptivité aux colorants. Le copolymère PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) S-630 est utilisé comme liant pour permettre le traitement aqueux des photorésists.

Les copolymères PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) W

PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) W-735 est un copolymère 70/30 de PVP et d’acétate de vinyle fourni sous forme de solution à 50% dans l’eau. PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) W-635 est un copolymère 60/40 également fourni sous forme de solution aqueuse à 50%. Ce sont des résines fixatives non ioniques idéales pour les mousses et gels sans alcool. Ils offrent aux formulateurs des propriétés exceptionnelles de rétention des boucles et du style sans accumulation, écaillage ou ternissement des cheveux.

Hygroscopicité des films: La sensibilité à l’eau inhérente des films de copolymère PVP / VA varie avec le rapport des monomères. Les données typiques sont présentées ci-dessous pour PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E-735, PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E-535 et PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E-335. En général, PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) est moins hygroscopique que PVP.

Abstrait

Dans cette étude, l’influence de la composition du copolymère sur la solubilité médicament-polymère a été étudiée. La solubilité du médicament modèle célécoxib (CCX) dans diverses compositions de copolymère polyvinylpyrrolidone / acétate de vinyle (PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)) (70/30, 60/40, 50/50 et 30/70 w / w) et les homopolymères purs la polyvinylpyrrolidone (PVP) et l’acétate de polyvinyle (PVA) ont été prédits à 25 ° C en utilisant une méthode d’analyse thermique basée sur la recristallisation d’une dispersion amorphe sursaturée (méthode de recristallisation). Ces solubilités ont été comparées à une prédiction basée sur la solubilité du CCX dans les précurseurs monomères liquides de PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat), N-vinylpyrrolidone (NVP) et acétate de vinyle (VA), en utilisant la théorie du réseau Flory-Huggins (solubilité des monomères liquides approche).

Les solubilités prédites à partir de l’approche de solubilité des monomères liquides ont augmenté linéairement avec l’augmentation du rapport VP / VA de 0,03 à 0,60 w / w. Même si les solubilités prédites à partir du procédé de recristallisation augmentaient également avec l’augmentation du rapport VP / VA de 0,02 à 0,40 w / w, la solubilité prédite semblait approcher un plateau à des rapports VP / VA élevés.

Des écarts positifs croissants par rapport à l’équation de Gordon-Taylor avec un rapport VP / VA croissant ont indiqué de fortes interactions entre le CCX et l’unité de répétition VP, ce qui était conforme aux solubilités relativement élevées prédites en utilisant les deux méthodes.

Comme le plateau de solubilité peut être une conséquence de l’encombrement stérique causé par les différences de taille entre les unités répétées CCX et VP, il est probable qu’une molécule CCX interagissant avec une unité répétée VP empêche une autre molécule CCX de se lier aux unités répétées voisines dans le chaîne polymère.

Par conséquent, il est possible que le remplacement de ces unités de répétition VP hygroscopiques voisines par des unités de répétition VA hydrophobes, puisse augmenter la stabilité physique d’une dispersion solide amorphe sans compromettre la solubilité médicament-polymère. Ces connaissances pourraient être utilisées de manière avantageuse dans le développement futur de systèmes de délivrance de médicaments amorphes car les copolymères pourraient être personnalisés pour fournir une solubilité et une stabilité physique optimales de médicament-polymère.

Copolymère PVP / VA. PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) agit comme un agent filmogène. Il forme des films transparents, flexibles et perméables à l’oxygène qui adhèrent au verre, au plastique et au métal. Il offre une tenue solide et rigide, une meilleure rétention des boucles à haute humidité et une bonne compatibilité avec les propulseurs. Le PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) trouve une application dans la formulation de produits de soins capillaires et sans alcool comme les laques, les colorants, les mousses, les gels, les lotions / crèmes coiffantes et les stylers novateurs. Il s’agit d’une solution à 50% de copolymère linéaire et statistique de polyvinylpyrrolidone / acétate de vinyle (PVP / VA) dans l’eau. Il est produit par polymérisation radicalaire de monomères dans le rapport 60/40 (VP / VA).

PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) copolymère vinylpyrrolidone / acétate de vinyle thermoplastique linéaire et statistique. PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) utilisé dans les revêtements industriels, spécialisés et d’imagerie, les encres d’imprimerie et les peintures. PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) offre transparence, flexibilité, perméabilité à l’oxygène et adhérence au verre, aux plastiques et aux métaux.

Le PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) est produit industriellement par vinylation de la 2-pyrrolidone, c’est-à-dire la réaction catalysée par une base avec de l’acétylène. [2] PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) est le précurseur de la polyvinylpyrrolidone (PVP), une matière synthétique importante. Le monomère PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) est couramment utilisé comme diluant réactif dans les polymères durcissables aux ultraviolets et par faisceau d’électrons appliqués comme encres, revêtements ou adhésifs. [2] La polyvinylpyrrolidone (PVP), également communément appelée polyvidone ou povidone, est un polymère soluble dans l’eau fabriqué à partir du monomère N-vinylpyrrolidone. [1]

Qu’est-ce que le copolymère PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat)?

Le copolymère PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) est l’ingrédient présent dans la plupart des produits de soins capillaires traditionnels qui fournit le facteur de maintien. Il est donc très courant dans la plupart des laques pour cheveux, mais également dans les gels, les cires, les pommades et les crèmes coiffantes. C’est un ingrédient synthétique dérivé du pétrole.

PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) (également connu sous le nom de polyvinylpyrrolidone) était l’ingrédient principal des premiers laques pour les cheveux vraiment réussis au début des années 1950. Ce polymère fonctionnait comme laque pour les cheveux car il était soluble dans l’eau. Cela signifiait qu’il pouvait être rincé lorsque vous vous lavez les cheveux. PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) avait tendance à absorber l’eau de l’air, donnant aux cheveux un aspect collant qui était si courant dans les années soixante.

Malheureusement, personne n’était au courant des dangers liés à ce polymère. L’inhalation de particules de PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) Copolymer peut provoquer des lésions pulmonaires chez les personnes sensibles. Il peut être considéré comme toxique, car les particules peuvent contribuer à la formation de corps étrangers dans les poumons des personnes. Jusqu’à il y a quelques années, cet ingrédient était considéré comme sûr à utiliser, mais c’est maintenant un ingrédient qu’il vaut mieux éviter.

Série de copolymères PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E et I

Pour s’adapter à de nombreux domaines d’application, les séries E et I de copolymères PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) sont disponibles sous forme de solutions à 50% dans l’éthanol et dans l’isopropanol2, respectivement. Il existe quatre copolymères distincts dans le groupe E: E-335, E-535, E-735, E-735 et trois dans le groupe I: 1-335, 1-535, 1-735. Chacun diffère par le rapport des monomères et, par conséquent, par les propriétés – sensibilité à l’eau, viscosité, point de ramollissement, etc.

Stockage et manutention

Les copolymères PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) sont stables pendant au moins un an dans des conditions normales de stockage, mais des précautions strictes doivent être prises pour éviter l’accumulation d’humidité. Les séries E et I ont des points d’éclair compris entre 10 et 13 ° C (50-55 ° F) et sont classées comme matériaux inflammables (DOT inflammables). Pour des raisons de sécurité et pour éviter l’accumulation d’humidité due à la respiration du tambour avec les changements de température, entreposer dans un endroit sec en dessous de 100 ° F (38 ° C) et reconditionner ou utiliser dans des installations antidéflagrantes.

Les séries PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) E et I

Pour s’adapter à plus de domaines d’application, les séries E et I de copolymères PVP/VA W-735 (Acétate de vinyle polyvinylpyrrolidone, Polyvinylpyrrolidone Vinyl Acetate, Polivinilpirolidon Vinil Asetat) sont disponibles sous forme de solutions à 50% dans l’éthanol et l’isopropanol **, respectivement. Il existe quatre copolymères distincts dans le groupe E: E-335, E-535, E-735, E-735 et trois dans le groupe I: I-335, I-535, I-735. Chacun diffère par le rapport des monomères, et donc par les propriétés – sensibilité à l’eau, viscosité, point de ramollissement, etc. Ceci offre aux formulateurs une flexibilité considérable pour créer de nouveaux produits pour des applications spécifiques. Les films transparents formés par tous ces copolymères sont caractérisés par leur adhérence, leur éclat, leur dureté et leur réhumidification à l’eau. Une bonne compatibilité avec de nombreux modificateurs et plastifiants permet une grande liberté de formulation et élargit la gamme d’hygroscopicité, de flexibilité du film et de résistance à l’abrasion. Les copolymères non modifiés ayant les rapports les plus faibles de vinylpyrrolidone à l’acétate de vinyle présentent une plus grande résistance à l’humidité que les produits avec des rapports élevés de VP à VA.

PVP/VA W-735

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PVP/VA W-735

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