Polyvinylpyrrolidone Vinyl Acetate

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Polyvinylpyrrolidone vinyl acetate.

190845 poly 1 vinylpyrrolidone co vinyl acetate email this page to a friend. The major businesses of our company are. In microscopy pvp is useful for making an aqueous mounting medium. 2003 to present p.

Polyvinylpyrrolidone vinyl acetate pvp va 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. Custom manufacturing and co developing new chemicals under signing secret. Copovidone pvp pva is the random linear copolymer of n vinyl 2 pyrrolidone and vinyl acetate in a 60 40 ratio making it a derivative of pvp. Pvp va copolymers are available as white powders or clear solutions.

Is supplier for polyvinylpyrrolidone vinyl acetate. Wiley vch verlag gmbh co. Polyvinylpyrrolidone vinyl acetate vp va copolymer is a white free flowing powder. 190845 sigma aldrich poly 1 vinylpyrrolidone co vinyl acetate average m w 50 000 gpc vs.

At 50 rh the typical equilibrium moisture content is approximately 10 fig. Addition of vinyl acetate to the polymer chain reduces the hydrophilicity and hygroscopicity of the pvp homopolymer. Pvp va copolymer is poorly absorbed orally and largely excreted intact in the faeces. The main areas of use are the production of polyvinylpyrrolidone and copolymers the preferred comonomers being vinyl acetate and methyl acrylate.

Supply intermediates for pharmaceuticals agrochemicals dyestuff electro chemicals cosmetics perfume etc. Acetic acid ethenyl ester polymer with 1 ethenyl 2 pyrrolidinone. Visit chemicalbook to find more poly 1 vinylpyrrolidone co vinyl acetate 25086 89 9 information like chemical properties structure melting point boiling point density molecular formula molecular weight physical properties toxicity information customs codes. Supply high purity organic reagent.

Federal republic of germany. Pvp va polymers produce transparent flexible oxygen permeable films which adhere to glass plastics and metals. Ullmann s encyclopedia of industrial chemistry. Food and drug administration fda has approved this chemical for many uses and it is generally considered safe.

Materials science poly vinylpyrrolidinone pvp copolymers. In cosmetics and personal care products vp va copolymer is used primarily in the formulation of hair care products but can also be found in skin and nail products.