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Thermal stability of poly(vinyl bromide) and copolymers of vinyl bromide with methyl vinyl ketone

✍ Scribed by M. Amin Diab

Publisher: Elsevier Science
Year: 1984
Tongue: English
Weight: 285 KB
Volume: 20
Category: Article
ISSN: 0014-3057
DOI: 10.1016/0014-3057(84)90102-2

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✦ Synopsis

Thermal stability and degradation behaviour have been studied for PVB and VB MVK copolymers spanning the whole composition range, using thermogravimetric analysis. The reactivity ratios in the radical copolymerization were determined by using an NMR technique, leading to q(VB) = 3.6 + 0.2 and r2(MVK ) = 0.2 + 0.1. The introduction of MVK units into the VB chain leads to an interaction with release of methyl bromide. The stability of the copolymers increases with increasing MVK concentration.

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