New poly(arylene ether)s with pendant phosphonic acid groups

Kenji Miyatake, Allan S. Hay*

*この研究の対応する著者

研究成果: Article査読

75 被引用数 (Scopus)

抄録

Soluble brominated poly(arylene ether)s containing mono- or dibromotetraphenylphenylene ether and octafluorobiphenylene units were synthesized. The polymers were high molecular weight (weight-average molecular weight = 115,100-191,300; number-average molecular weight = 32,300-34,000) and had high glass-transition temperatures (>279 °C) and decomposition temperatures (>472 °C). The brominated polymers were phosphonated with diethylphosphite by a palladium-catalyzed reaction. Quantitative phosphonation was possible when 50 mol % of a catalyst based on bromine was used. The diethylphosphonated polymers were dealkylated by a reaction with bromotrimethylsilane in carbon tetrachloride followed by hydrolysis with hydrochloric acid. The polymers with pendant phosphonic acid groups were soluble in polar solvents such as dimethyl sulfoxide and gave flexible and tough films via casting from solution. The polymers were hygroscopic and swelled in water. They did not decompose at temperatures of up to 260 °C under a nitrogen atmosphere.

本文言語English
ページ(範囲)3770-3779
ページ数10
ジャーナルJournal of Polymer Science, Part A: Polymer Chemistry
39
21
DOI
出版ステータスPublished - 2001 11月 1
外部発表はい

ASJC Scopus subject areas

  • ポリマーおよびプラスチック
  • 有機化学
  • 材料化学

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