Polymer/liquid crystal composite membranes: A new membrane system for crown-mediated ion transport

Seiji Shinkai, Tisato Kajiyama

研究成果: ジャーナルへの寄稿記事

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Composite membranes composed of polymer (polycarbonate, PC)/liquid crystal [N-(4-ethoxybenzylidene)-4' ‘-butylaniline, EBBA]/crown ethers have been prepared. Crown-mediated K+ transport through the PC/EBBA/crown membranes was very fast above tkn(crystal-nematic liquid crystal phase transition temperature of EBBA) owing to the high fluidity of EBBA forming a continuous phase in the composite membranes. K+ transport was very slow below TKN where the therm38:150al molecular motion of EBBA is frozen. In particular, K+ transport is “completely” suppressed when the crown carriers form microheterogeneous, phase-separated aggregates in the membranes. This is the first example for “complete” thermocontrol of ion transport through the polymer composite membranes.

元の言語英語
ページ(範囲)575-580
ページ数6
ジャーナルPure and Applied Chemistry
60
発行部数4
DOI
出版物ステータス出版済み - 1 1 1988
外部発表Yes

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All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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