Facilitated Oxygen Transport in Poly (alkylmethacrylate-<I>co</I>-vinylimidazole) -cobaltporphyrin Membranes

DOI

Bibliographic Information

Other Title
  • ポリ (アルキルメタクリレート-<I>co</I>-ビニルイミダゾール) -コバルトポルフィリン錯体膜での酸素促進輸送

Abstract

Poly (alkylmethacrylate-co-vinylimidazole) membranes, containing a cobaltporphyrin complex (CoP) which binds specifically and reversibly with molecular oxygen, were prepared. The spectroscopically determined apparent oxygen-binding equilibrium constant was greater for the membrane composed of the methacrylate copolymer with a longer alkyl side chain, which showed lower glass transition temperature (Tg) and larger oxygen solubility coefficient. The apparent oxygen-binding and-dissociation rate constants also increased with decreasing Tg of the membrane. The permeability coefficient and the time lag (low-pressure permeation measurement) increased with decreasing upstream gas pressure. This behavior was analyzed by a dual mode transport model. The oxygen permeability coefficient increased with the length of the alkyl side chain, because the longer chain increases oxygen diffusivity.

Journal

  • KOBUNSHI RONBUNSHU

    KOBUNSHI RONBUNSHU 46 (6), 375-380, 1989

    The Society of Polymer Science, Japan

Keywords

Details 詳細情報について

  • CRID
    1390001206525864832
  • NII Article ID
    130003837212
  • DOI
    10.1295/koron.46.375
  • ISSN
    18815685
    03862186
  • Text Lang
    ja
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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