Effect of ammonium groups on the properties and alkaline stability of poly(arylene ether)-based anion exchange membranes

Junpei Miyake, Keita Fukasawa, Masahiro Watanabe, Kenji Miyatake*

*この研究の対応する著者

研究成果: Article査読

47 被引用数 (Scopus)

抄録

Five kinds of ammonium groups functionalized partially fluorinated poly(arylene ether) block copolymer membranes were prepared for investigating the structure-property relationship as anion exchange membranes (AEMs). Consequently, the pyridine (PYR)-modified membrane showed the highest alkaline and hydrazine stability in terms of the conductivity, water uptake, and dry weight. The chloromethylated precursor block copolymers were reacted with amines, such as trimethylamine, N-butyldimethylamine, 1-methylimidazole, 1,2-dimethylimidazole, and PYR to provide the target quaternized poly(arylene ether)s. The structures of the polymers, as well as model compounds and oligomers were well characterized by 1H NMR spectra. The obtained AEMs were subjected to water uptake and hydroxide ion conductivity measurements and stabilities in aqueous alkaline and hydrazine media. The pyridinium-functionalized quaternized polymers membrane showed the highest alkaline and hydrazine stability with minor losses in the conductivity, water uptake, and dry weight. © 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2014, 52, 383-389 Five kinds of ammonium groups (TMA, BDMA, MIm, DMIm, and PYR)-modified partially fluorinated poly(arylene ether) block copolymer membranes are synthesized to elucidate properties that include water uptake, hydroxide ion conductivity, stabilities in aqueous alkaline, and hydrazine media for anion exchange membrane fuel cell applications. The PYR-QPE membrane shows the highest alkaline and hydrazine stability in terms of the conductivity, water uptake, and dry weight.

本文言語English
ページ(範囲)383-389
ページ数7
ジャーナルJournal of Polymer Science, Part A: Polymer Chemistry
52
3
DOI
出版ステータスPublished - 2014 2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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