Coloration of Aromatic Polyimides and Electronic Properties of Their Source Materials.

DOI Web Site 被引用文献19件 参考文献39件
  • Ando Shinji
    NTT Science and Core Technology Laboratory Group, Nippon Telegraph and Telephone Corporation
  • Matsuura Tohru
    NTT Science and Core Technology Laboratory Group, Nippon Telegraph and Telephone Corporation
  • Sasaki Shigekuni
    NTT Science and Core Technology Laboratory Group, Nippon Telegraph and Telephone Corporation

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タイトル別名
  • Coloration of Aromatic Polyimides and E

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The relationships between the color intensities of polyimide films and the electronic properties of their source materials—aromatic diamines and aromatic tetracarboxylic dianhydrides—are discussed. The arrangement of the diamine moieties in order of color intensity of polyimides shows fairly good agreement with the order of the electron-donating properties of the diamines estimated from 15N NMR chemical shifts (δN). On the other hand, the arrangement of the dianhydrides moieties in order of color intensity of polyimides agrees with the order of the electron-accepting properties of the dianhydrides estimated from experimental and calculated electron affinity (EA) although systematic inconsistencies are observed for the dianhydrides having-CF3 groups and a benzophenone carbonyl group. These results are consistent with the formation of charge transfer complex (CTC) and indicate that the electron-donating properties of diamines and electron-accepting properties of dianhydrides are retained to a significant extent even in polyimide molecular chains.

収録刊行物

  • Polymer Journal

    Polymer Journal 29 (1), 69-76, 1997

    The Society of Polymer Science, Japan

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