Molecular Weight Of Ethylene Vinyl Acetate

Ethylene vinyl acetate eva also known as poly ethylene vinyl acetate peva is the copolymer of ethylene and vinyl acetate the weight percent of vinyl acetate usually varies from 10 to 40 with the remainder being ethylene.

Molecular weight of ethylene vinyl acetate.

Ethylene vinyl acetate eva is a random copolymer of ethylene and varying amounts of vinyl acetate va. Ethylene vinyl acetate copolymer eva for instance is produced by the copolymerization of ethylene and vinyl acetate under pressure using free radical catalysts. World eva capacity is projected to increase at an average annual rate of about 5 per year through 2023 while consumption is expected to increase at 4 per year over the same period. Other articles where ethylene vinyl acetate is discussed.

Ethylene is now the preferred feedstock for vam vinyl acetate monomer largely replacing the earlier acetylene based process. The following pie chart shows world consumption of ethylene vinyl acetate. Ethylene vinyl acetate polymer. As the va content increases crystallinity decreases until at 50 the eva is.

Many different grades are manufactured with the vinyl acetate content varying from 5 to 50 percent by weight. There are three different types of eva copolymer which differ in the vinyl acetate va content and the way the materials are used.