Ethylene Vinyl Acetate Infrared Spectrum

Raman spectra of ethylene vinyl acetate copolymers.

Ethylene vinyl acetate infrared spectrum.

Direct determination of vinyl acetate content of ethylene vinyl acetate copolymers in thick films by infrared spectroscopy. Polymer testing 1999 18 7 551 557. Spectral changes in the raman spectra of eva with increasing lamination time which equals increasing degree of cross linking were mainly detected in the ch vibrational regions namely in. 5 nmr 6 ftir and 2 raman.

Among the several different absorption ratios proposed in literature the intensities ratio i 610 i 2680 c o ch 2 was chosen to evaluate the amount of. Conclusion from the aforementioned examples it is evident that raman spectroscopy is a powerful technique for polymer analysis both in laboratory settings and on the process line. 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. Attenuated total reflectance infrared atr ir spectrum of ethylene vinyl acetate copolymer with properties.

Acetic acid vinyl ester. Compound ethylene vinyl acetate copolymer with free spectra. Infrared spectroscopy is used to determine the vinyl acetate incorporation into eva copolymers using the ratio between the characteristic band of acetoxy group and ethylene sequences. There are three different types of eva copolymer which differ in the vinyl acetate va content and the way the materials are used.

This structure is also available as a 2d mol file or as a computed 3d sd file the 3d structure may be viewed using java or javascript. An infrared spectroscopic method was developed for the determination of vinyl acetate content in thick films of ethylene vinyl acetate copolymers. Xtxrwkrvritetp uhfffaoysa n cas registry number.