Recent Developments in Toransition Metal-Catalyzed Polymerization. II. Synthesis and Properties of Liquid Crystalline Monosubstituted Polyacetylenes Containing Benzylideneaniline as a Mesogen.

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  • TANAKA Yusuke
    Department of Industrial Chemistry, College of Engineering, Kanto-Gakuin University
  • KOUZAI Hiroaki
    Department of Industrial Chemistry, College of Engineering, Kanto-Gakuin University

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Other Title
  • 遷移金属触媒重合の新展開　ＩＩ　　ベンジリデンアニリンをメソゲンとする液晶性モノ置換ポリアセチレンの合成と性質
  • ベンジリデンアニリン オ メソゲン ト スル エキショウセイ モノ チカン ポリアセチレン ノ ゴウセイ ト セイシツ

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Abstract

We have synthesized novel monosubstituted acetylenes with a benzylideneaniline group and then polymerized them with a Rh complex catalyst, [Rh (norbornadiene) Cl] 2. All polymers were soluble in organic solvents such as benzene, chloroform and THF. The polymers obtained showed thermotropic smectic phases as observed by polarizing optical microscopy and DSC measurements. Their relative weight-average molecular weights determined by GPC were in the range of 5×104-7×104. These polymers were fairly thermally stable, judging from their high onset temperature (360-400°C) of weight loss in TGA under nitrogen.

Journal

  • KOBUNSHI RONBUNSHU

    KOBUNSHI RONBUNSHU 59 (6), 406-409, 2002

    The Society of Polymer Science, Japan

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