置換ポリアセチレン膜の創成,特性,および機能  [in Japanese] Synthesis, Properties, and Functions of Substituted Polyacetylene Membranes  [in Japanese]

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Author(s)

    • 増田 俊夫 MUSUDA Toshio
    • 京都大学大学院工学研究科高分子化学専攻 Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University

Abstract

This review article surveys the synthesis and properties of substituted polyacetylenes, especially those which exhibit high gas permeability, such as poly [1- (trimethylsilyl) -1-propyne] [poly (TMSP)] and poly (diphenylacetylene) [poly (DPA)] derivatives. Poly (TMSP) having high molecular weight up to around 1 × 10<SUP>6</SUP> can be obtained by the metathesis polymerization of TMSP catalyzed by TaCl<SUB>5</SUB> and NbCl<SUB>5</SUB>. This polymer is characterized by good solubility in many common solvents, formation of tough films by solution casting, a high glass transition temperature (> 250 °C), and fairthermal stability. Its oxygen permeability (<I>P</I>o<SUB>2</SUB>) at 25 °C reaches ca. 6, 000 barrers, which is the highest value of all existing polymers. The gas permeation properties of poly (TMSP) are reviewed. The TaCl<SUB>5</SUB>/<I>n</I>-Bu<SUB>4</SUB>Sn system is effective for the polymerization of DPAs. Most of the produced polymers are soluble in organic solvents, thermally highly stable, and film-forming by solution casting. Interestingly, large <I>P</I>o<SUB>2</SUB> values (1, 100 barrers) are observed with poly (DPAs) bearing bulky spherical <I>para</I>-substituents. Desilylation of <I>p</I>-Me<SUB>3</SUB>Si-containing poly (DPA) membrane yields poly (DPA) membrane, which shows high <I>P</I>o<SUB>2</SUB> of-6, 000 barrers.

Journal

  • MEMBRANE

    MEMBRANE 26(4), 171-178, 2001-07-01

    THE MEMBRANE SOCIETY OF JAPAN

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Codes

  • NII Article ID (NAID)
    10008010691
  • NII NACSIS-CAT ID (NCID)
    AN0023215X
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    03851036
  • NDL Article ID
    5858098
  • NDL Source Classification
    ZR2(科学技術--生物学--生化学)
  • NDL Call No.
    Z18-1127
  • Data Source
    CJP  CJPref  NDL  J-STAGE 
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