Molecular Weight Ethylene Vinyl Acetate

There are three different types of eva copolymer which differ in the vinyl acetate va content and the way the materials are used.

Molecular weight ethylene vinyl acetate.

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. Ethylene vinyl acetate eva is a random copolymer of ethylene and varying amounts of vinyl acetate va. Ethylene vinyl acetate polymer. Chemsrc provides ethylene vinyl acetate copolymer cas 24937 78 8 msds density melting point boiling point structure formula molecular weight etc.

At 50 c the solubility of vinyl acetate in water is 0 1 wt more than at 20 c but the solubility of water in vinyl acetate doubles to about 2 wt. Articles of vinyl acetate are included as well. Melt index 19 g 10 min 190 c 2 16 kg contains 200 900 ppm bht as inhibitor. The major industrial route involves the reaction of ethylene and acetic acid with oxygen in the presence of a palladium catalyst.

As the va content increases crystallinity decreases until at 50 the eva is. Emblem in packaging technology 2012. At 20 c a saturated solution of vinyl acetate in water contains 2 0 2 4 wt vinyl acetate whereas a saturated solution of water in vinyl acetate contains 0 9 1 0 wt water. Chemsrc provides vinyl acetate cas 108 05 4 msds density melting point boiling point structure formula molecular weight etc.

The following pie chart shows world consumption of ethylene vinyl acetate. Poly ethylene co vinyl acetate vinyl acetate 25 wt. Articles of ethylene vinyl acetate copolymer are included as well. Since vinyl alcohol is highly unstable with respect to acetaldehyde the preparation of vinyl acetate is more complex than the synthesis of other acetate esters.

Visit chemicalbook to find more ethylene vinyl acetate copolymer 24937 78 8 information like chemical properties structure melting point boiling point density molecular formula molecular weight physical properties toxicity information customs codes. The va comonomer interferes with chain packing reducing crystallinity and thus lowering t m and improving transparency when compared with ldpe.