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Vinyl acetate is an organic compound with the formula CH 3 CO 2 CH=CH 2. This colorless liquid is the precursor to polyvinyl acetate , ethene-vinyl acetate copolymers , polyvinyl alcohol , and other important industrial polymers.
The weight percent of vinyl acetate usually varies from 10 to 50%, with the remainder being ethylene. There are three different types of EVA copolymer, which differ in the vinyl acetate (VA) content and the way the materials are used. The EVA copolymer which is based on a low proportion of VA (approximately up to 4%) may be referred to as vinyl ...
Vinyl polymers are subject of several structural variations, which greatly expands the range of polymers and their applications. With the exception of polyethylene, vinyl polymers can arise from head-to-tail linking of monomers, head-to-head combined with tail-to-tail, or a mixture of those two patterns. Additionally the substituted carbon center in such polymers is stereogenic (a "chiral center")
Vinyl acetate, a commercially important monomer. Vinyl ester refers to esters formally derived from vinyl alcohol. Commercially important examples of these monomers are vinyl acetate, vinyl propionate, and vinyl laurate. [1]
Polyvinyl acetate is also the raw material to make other polymers like: Polyvinyl alcohol −[HOCHCH 2 ]−: 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 .
It consists of filling the circulatory system of the piece with vinyl acetate and its use of corrosion technique for the removal of the superposed matter, that is, the organic matter. The technique of vinylite followed by corrosion, besides having low cost, provides a long period of conservation, satisfying the need of undergraduate students as ...
In organic chemistry, vinylation is the process of attaching a vinyl group (CH 2 =CH−) to a substrate. Many organic compounds contain vinyl groups, so the process has attracted significant interest, especially since the reaction scope includes substituted vinyl groups. The reactions can be classified according to the source of the vinyl group.
Ethylene vinyl alcohol (EVOH) is a formal copolymer of ethylene and vinyl alcohol. Because the latter monomer mainly exists as its tautomer acetaldehyde , the copolymer is prepared by polymerization of ethylene and vinyl acetate to give the ethylene vinyl acetate (EVA) copolymer followed by hydrolysis.