Precision Polymerization and Polymers II. Synthesis of Helical Polyamides from a Tartaric Acid Derivative and Aromatic Diamines.

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  • KONDO Fumitaka
    Department of Materials Science and Engineering, Yamagata University
  • IWAIZUMI Taku
    Department of Materials Science and Engineering, Yamagata University
  • KIMURA Hiroshi
    Department of Materials Science and Engineering, Yamagata University
  • TAKEISHI Makoto
    Department of Materials Science and Engineering, Yamagata University

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Other Title
  • 精密重合・精密合成高分子　ＩＩ　　ホルマール化酒石酸と芳香族ジアミンを用いたらせんポリアミドの合成
  • ホルマールカ シュセキサン ト ホウコウゾク ジアミン オ モチイタ ラセン

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Abstract

Polyamides were prepared by direct polycondensation of a tartaric acid derivative with aromatic diamines using PCl3 and N-acethylphenylhydrazine as a condensing system. The high specific rotations and CD spectra of the polyamides indicated that the polymers have an ordered conformation. The most stable conformation computed for the polyamides was a new type of helix. Photoirradiation of the polymer obtained with 4, 4′-diaminoazobenzene induced a change of the helical conformation because of the trans-cis isomerization of the azobenzene units in the main chain.

Journal

  • KOBUNSHI RONBUNSHU

    KOBUNSHI RONBUNSHU 54 (12), 908-913, 1997

    The Society of Polymer Science, Japan

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