中华医学超声杂志

应用化学 ›› 1994, Vol. 0 ›› Issue (3): 36-39.

• 研究论文 • 上一篇    下一篇

聚(对羟基苯甲酸－对苯二甲酸双酚A酯)的液晶结构与相变

王勇, 吴大诚, 李瑞霞, 谢新光   

  1. 成都科技大学纺织工学院 成都 610065
  • 收稿日期:1993-09-18 修回日期:1993-12-06 出版日期:1994-06-10 发布日期:1994-06-10

Liquid Crystal Structures and Phase Transitions of Copolyesters

Wang Yong, Wu Dacheng, Li Ruixia, Xie Xinguang   

  1. Textile College, Chengdu University of Science and Technology, Chengdu 610065
  • Received:1993-09-18 Revised:1993-12-06 Published:1994-06-10 Online:1994-06-10

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摘要： 用DSC、WAXD和热台偏光显微镜等研究了热处理和外力作用对标题共聚酯液晶微观结构和序态结构的影响。对出现的双玻璃化转变现象进行了讨论。

关键词: 热致性液晶共聚酯, 微观结构, 取向结构, 玻璃化转变

Abstract: The strtictures and phase transitions of thermotropic liquid crystalline aromaticcopolyesters based on p-hydroxy-benzoic acid (PHB),terephthalic acid (TPA) and bisphenol A(BPA) were studied by DSC,WAXD,and hot stage polarized microscopy.The effects of annealing and shearing on the microstructures and seqtience structures of the copolyesters were discussed emphatically,The two glass transition temperatures occurred in sample with 50% PHB bave been discussed.

Key words: thermotropic liquid crystalline copolyester, microstructure, oriented structure, glass transition

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