Synthesis and Functions of Optically Active Helical Conjugated Polymers

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  • Sanda Fumio
    Department of Polymer Chemistry , Graduate School of Engineering, Kyoto University
  • Masuda Toshio
    Department of Polymer Chemistry , Graduate School of Engineering, Kyoto University

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  • 光学活性らせん共役高分子の合成と機能
  • コウガク カッセイ ラセン キョウヤク コウブンシ ノ ゴウセイ ト キノウ

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Abstract

This article reviews the secondary structures, properties, and functions of helical polyacetylenes substituted with optically active groups, including cis-stereoregular poly (1-methylpropargyl ester) s, poly (N-alkynylamide) s, and poly (alkynamide) s synthesized by the polymerization using rhodium catalysts. The polymers take tightly twisted cis-cisoidal and loosely twised cis-transoidal helices according to the substituents and media, some of which undergo reversible transformation of helical sense with external stimuli such as temperature and pH. The helical polymers are applicable to chiral recognition materials and catalyts for asymmetric synthesis.

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