✦ LIBER ✦

Degradation mechanism under isothermal conditions of cross-linked polymer by I. R. spectroscopy

✍ Scribed by Alok Nath Das

Publisher: Elsevier Science
Year: 1981
Tongue: English
Weight: 193 KB
Volume: 40
Category: Article
ISSN: 0010-2180
DOI: 10.1016/0010-2180(81)90104-8

No coin nor oath required. For personal study only.

✦ Synopsis

Two first-order reaction rates are found to be present during the thermal degradation of styrene-polyester copolymer by thermogravimetric analysis (TGA) under isothermal conditions, ranging from 200--450°C. IR spectra of the original polymer sample and residues collected at different temperatures and at different times are compared with each other. It has been found that the first rate is largely due to chain scission from weak links and the second rate may be due to chain scission from the cross-linking bonds.

📜 SIMILAR VOLUMES

Degradation studies of some polyesters a

Degradation studies of some polyesters and polycarbonates—2. Polylactide: Degradation under isothermal conditions, thermal degradation mechanism and photolysis of the polymer

✍ I.C. McNeill; H.A. Leiper 📂 Article 📅 1985 🏛 Elsevier Science 🌐 English ⚖ 734 KB

Characterization of deformation phenomen

Characterization of deformation phenomena in polymers by rapid-scanning Fourier transform infra-red (FT i.r.) spectroscopy and mechanical measurements: 1. Orientation of isotactic polypropylene during uniaxial deformation

✍ G. Bayer; W. Hoffmann; H.W. Siesler 📂 Article 📅 1980 🏛 Elsevier Science 🌐 English ⚖ 404 KB