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Learn more about polyvinyl acetate in this article.
Poly vinyl acetate solubility. Pva is commonly used in orthopedic applications due to its low protein absorption characteristics biocompatibility high water solubility and chemical resistance 57. It is soluble in unsaturated polyesters up resins. It is one of the most widely used water dispersed resins. Polyvinyl acetate is partially or completely hydrolysed to give polyvinyl alcohol.
This reversible saponification and esterification reaction was a strong hint for hermann staudinger in the formulation of his theory of macromolecules. Emblem in packaging technology 2012. Polyvinyl acetate a synthetic resin prepared by the polymerization of vinyl acetate. Although its name implies a homopolymer structure the structure of commercial pva is a copolymer of vinyl alcohol and vinyl acetate as seen in fig.
Pvoh is produced by hydrolysis of pva and the strong hydrogen bonding imparted by the oh groups means that pure pvoh is water soluble. Polyvinyl acetate pvac was discovered in 1912 by dr. Fritz klatte in germany. A white nontoxic thermoplastic resin prepared by the polymerization of vinyl acetate.
Poly vinyl acetate mowilith structure based name. No polyvinyl acetate pvac is not soluble in water. Pva is used as an emulsion adhesive for bag sack and carton making. Polyvinyl acetate is also the raw material to make other polymers like.
In its most important application polyvinyl acetate serves as the film forming ingredient in water based latex paints. Polyvinyl acetate pva and polyvinyl alcohol pvoh are further examples of ethylene copolymers. Polyvinyl acetate and polyvinyl alcohol. Polyvinyl acetate and polyvinyl alcohol.
Polyvinyl alcohol pva is a water soluble polymer with a glass transition temperature tg of 80 c. Polyvinyl acetate water based emulsions is often applied as a liquid that hardens to a solid when the water evaporates. Poly 1 acetoxyethylene poly ethenyl ethanoate poly 1 acetyloxiethene. Polyvinyl alcohol pva is a synthetic polymer derived from polyvinyl acetate through partial or full hydroxylation.
Polyvinyl acetate pva and polyvinyl alcohol pvoh are further examples of ethylene copolymers. It is also used in adhesives.
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