A route to preparation of bromomethylated poly(2,6‐dimethyl‐1,4‐phenylene oxide)

Juraj Líška, Eberhard Borsig, Ivan Tkáč

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Bromination of poly(2,6‐dimethyl‐1,4‐phenylene oxide) (PPO) in halogenated aromatic hydrocarbons has been investigated in order to find optimum conditions for preparation of bromomethylated polymer when using either molecular bromine or N‐bromosuccinimide as brominating agent. It was found that bromination of the methyl group of PPO took place in chlorobenzene with dicumyl peroxide initiator at 132°C and no phenyl‐brominated product was obtained. The parallel bromination of the phenyl group and the methyl group of PPO, however, occurs at temperatures below 130°C with either molecular bromine or N‐bromosuccinimide. At temperatures above 150°C, cross‐linking of PPO accompanying the bromination starts to play the important role in PPO modification.

Original languageEnglish (US)
Pages (from-to)121-129
Number of pages9
JournalDie Angewandte Makromolekulare Chemie
Issue number1
StatePublished - Oct 1993


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