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The Mechanism of Copper(II)-catalysed Polymerization of 2,4,6-Tribromophenols

✍ Scribed by Shi, Laishun; Yuan, Lubing

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 288 KB
Volume: 42
Category: Article
ISSN: 0959-8103
DOI: 10.1002/(sici)1097-0126(199702)42:2<188::aid-pi678>3.0.co;2-c

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✦ Synopsis

The copper(II)-catalysed polymerization of 2,4,6-tribromophenol and 2,4,6-tribromo-3-methylphenol by homogeneous and heterogeneous reaction was studied. The dependence of polymer yield and molecular weight on reaction time was investigated. The variance of bromide ion concentration in the polymerization mixture was measured continuously by a bromide ion selective electrode. The existence of phenoxy radical during the homogeneous polymerization process was conÐrmed by electron spin resonance measurements. A quinol ether equilibrium polymerization mechanism was proposed for the copper(II)-catalysed homogeneous polymerization of 2,4,6-tribromophenols.

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