Photo-alignment Properties of Main-Chain Liquid-Crystalline Polyimides Containing Chalcone Derivative

DOI Web Site 参考文献61件
  • Mihara Takashi
    Department of Chemistry, Faculty of Science, Science University of Tokyo
  • Nakao Yousuke
    Department of Chemistry, Faculty of Science, Science University of Tokyo
  • Koide Naoyuki
    Department of Chemistry, Faculty of Science, Science University of Tokyo

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We investigated photo-alignment properties of main-chain polyimides prepared from acid anhydrides [4,4′-(hexafluoro-isopropylidene) diphthalic anhydride (6FDA) or 4,4′-biphthalic anhydride (BPDA)] and diamine derivatives containing a chalcone group. The polyimides in the film state were irradiated with linearly polarized UV (LPUV) light under different conditions. The liquid-crystalline (LC) cell was fabricated from the polyimide film irradiated with LPUV light. A mixture of a low molecular liquid crystal (4-cyano-4′-n-pentylbiphenyl: 5CB) and a dichroic dye was filled in the LC cell. 5CB in the LC cell was easily aligned perpendicular to the electric vector of the incident LPUV light.

収録刊行物

  • Polymer Journal

    Polymer Journal 37 (3), 162-168, 2005

    The Society of Polymer Science, Japan

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