Discrimination of various poly(propylene) copolymers and prediction of their ethylene content by near-infrared and Raman spectroscopy in combination with chemometric methods

Discrimination of ethylene/vinyl acetate

Discrimination of ethylene/vinyl acetate copolymers with different composition and prediction of the content of vinyl acetate in the copolymers and their melting points by near-infrared spectroscopy and chemometrics

✍ Masahiko Shimoyama; Shuichi Hayano; Kimihiro Matsukawa; Hiroshi Inoue; Toshio Ni 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 256 KB 👁 2 views

Near-infrared (NIR) diffuse reflectance spectra have been measured by use of a rotating drawer for pellets of 12 kinds of ethylene/vinyl acetate (EVA) copolymers with vinyl acetate (VA, the comonomer) varying in the 7-44 wt % range. They are unambiguously discriminated from one another by a score pl