Thermal and mechanical properties of thermotropic polyarylates from 4,4'-diphenyldicarboxylic acid.

DOI Web Site 1 Citations

Bibliographic Information

Other Title
  • ４，４′‐ジフェニルジカルボン酸からの液晶ポリアリラートの熱的性質と機械的性質
  • 4 4 ジフェニルジカルボンサン カラ ノ エキショウ ポリアリラート ノ ネ

Search this article

Description

Polyarylates obtained from substituted hydroquinones and 4, 4′-diphenyldicarboxylic acid showed liquid crystallinities at the temperatures lower than 425°C in spite of their rigid chemical structures. For the polyarylates from chlorohydroquinone or methylhydroquinone and terephthalic acid, however, no liquid crystallinities were observed at the temperatures lower than 500°C. Fibers of polyarylates prepared from substituted hydroquinones, 4, 4′-diphenyldicarboxylic acid, and terephthalic acid showed high Young's modulus (11-95GPa).<BR>These tensile fractured fibers were composed of two types of fibrillar structures, needle-like fibrils parallel to the flow direction and plate-like fibrils transverse to the flow direction, as indicated by scanning electron microscopy. The Young's Modulus of the former structure was larger than the latter.

Journal

  • KOBUNSHI RONBUNSHU

    KOBUNSHI RONBUNSHU 43 (5), 253-259, 1986

    The Society of Polymer Science, Japan

Citations (1)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top