Poly Vinyl Acetate Tg
Polyvinyl acetate pvac was discovered in 1912 by dr.
Poly vinyl acetate tg. Polyvinyl acetate and polyvinyl alcohol. Poly 1 acetoxyethylene poly ethenyl ethanoate poly 1 acetyloxiethene. It is one of the most widely used water dispersed resins. A white nontoxic thermoplastic resin prepared by the polymerization of vinyl acetate.
Emblem in packaging technology 2012. Polyvinyl acetate a synthetic resin prepared by the polymerization of vinyl acetate. Polyvinyl acetate pvac pva is an atactic highly branched and noncrystalline thermoplastic prepared by conventional free radical polymerization. Poly vinyl acetate mowilith structure based name.
This reversible saponification and esterification reaction was a strong hint for hermann staudinger in the formulation of his theory of macromolecules. Fritz klatte in germany. Learn more about polyvinyl acetate in this article. Pvoh is produced by hydrolysis of pva and the strong hydrogen bonding imparted by the oh groups means that pure pvoh is water soluble.
Pva is used as an emulsion adhesive for bag sack and carton making. 305 and very sticky above it. Polyvinyl acetate pva and polyvinyl alcohol pvoh are further examples of ethylene copolymers. It has good resistance to uv and oxidation but is rather brittle below its tg ca.
Polyvinyl acetate is partially or completely hydrolysed to give polyvinyl alcohol. Polyvinyl acetate is also the raw material to make other polymers like.