高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (11): 1893.

• 论文 • 上一篇    下一篇

含柔性间隔基液晶聚酯合成的新途径

张海良, 谭松庭, 朱志强, 王霞瑜   

  1. 湘潭大学化学系, 湘潭 411105
  • 收稿日期:1996-07-13 出版日期:1997-11-24 发布日期:1997-11-24
  • 通讯作者: 张海良, 男, 30岁, 硕士, 讲师
  • 作者简介:张海良, 男, 30岁, 硕士, 讲师.

A New Synthetic Method of Liquid Crystalline Polyesters with Flexible Polymethylene Spacer

ZHANG Hai-Liang, TAN Song-Ting, ZHU Zhi-Qiang, WANG Xia-Yu   

  1. Departmet of Chemisty, Xiangtan University, Xiangtan 411105
  • Received:1996-07-13 Online:1997-11-24 Published:1997-11-24

摘要: 以对羟基苯甲酸甲酯和合亚甲基数不同的二醇为原料,在酯交换催化剂Ti(OC4H9-n)4/N(n-C4H9)3和热稳定剂亚磷酸三苯酯(C6H5O)3P存在下,采用熔融酯交换反应合成出单体(Ⅰ),Ⅰ与对苯二甲酰氢聚合成6种含柔性间隔基液晶聚酯.经DSC、偏光显微镜表征,6种聚合物均为热致性向列型液晶.

关键词: 液晶聚酯, 热致性液晶, 柔性间隔基, 熔融酯交换, 向列相

Abstract: Polymethylene his(p-hydroxybenzoates) (Ⅰ) were prepared from solbrol anddifferent dids by melted stated transesterification reaction with Ti (OC4H9-n)/N (n-C4H9)3 asthe catalyst and (C6H5O)3Pas the heat-stable inhibitor.Six liquid crystalline polyesters weresynthesized from terephthalyl dichloride and (Ⅰ).Thermotropic liquid crystallineproperties of these polyesters were identified by DSCand polarizing microscope with a hot stage.

Key words: Liquid crystalline polyesters, Thermotropic liquid crystal, Flexible polymethylene spacer, Melted state transesterification, Nematic phase

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