✦ LIBER ✦

Thermal degradation of graft copolymers of PVC with methacrylates, and comparisons with the behaviour of random copolymers and polymer mixtures

✍ Scribed by A. Guyot; M. Bert; A. Michel; I.C. McNeill

Publisher: Elsevier Science
Year: 1971
Tongue: English
Weight: 850 KB
Volume: 7
Category: Article
ISSN: 0014-3057
DOI: 10.1016/0014-3057(71)90080-2

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✦ Synopsis

Graft copolymers of poly(vinyl chloride) and methyl, butyl, and heptyl methacrylatc polymers were prepared by mastication of PVC in presence of the respective monomers; they have bccn studied by thcrmogravimetry, estimation of hydrogen chloride, thermal volatilization analysis, and flash pyrolysis/g.l.c. Some comparisons have been made with the degradation bchaviour of random copolymers and polymer mixtures with overall compositions similar to those of the graft copolymers. The random copolymers show distinctive bchaviour, but the graft copolymers and mixtures show many resemblances, adding further support to the view that radicals are involved in PVC dehydrochlorination.

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