| 热致液晶聚酯（对羟基苯甲酸—对苯二甲酸双酚A酯）的聚合研究 |
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| 引用本文： | 王勇,吴大诚.热致液晶聚酯（对羟基苯甲酸—对苯二甲酸双酚A酯）的聚合研究[J].化学研究与应用,1993,5(4):50-55. |
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| 作者姓名： | 王勇 吴大诚 |
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| 作者单位： | 成都科技大学纺织工学院，成都科技大学纺织工学院，成都科技大学纺织工学院，成都科技大学纺织工学院 成都 610065，成都 610065，成都 610065，成都 610065 |
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| 摘 要： | 本文以对乙酰氧基苯甲酸(pHB)、4,4′—二乙酰氧基二苯基丙烷(BPA)、对苯二甲酸(TPA)为单体,研究了制备液品共聚酯的熔融缩聚反应历程。通过用NaOH标准溶液滴定缩聚反应过程中析出的醋酸来间接地测定反应程度,讨论了无外加催化剂条件下合成液晶共聚酯的反应动力学。最后,对共聚合过程中的相态变化进行了观察。
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| 关 键 词： | 共聚芳酯 熔融缩聚 动力学 液晶 |
A STUDY ON POLYMERIZATION OF AROMATIC LIQUIDCRYSTALLINE, COPOLYESTERS (BASED ONP-HYDROXY-BENZOICACID TEREPHTHALIC ACID AND BISPHENOL A) |
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| Wang Yong Wu Dacheng Xie Xinguang Li Ruixia.A STUDY ON POLYMERIZATION OF AROMATIC LIQUIDCRYSTALLINE, COPOLYESTERS (BASED ONP-HYDROXY-BENZOICACID TEREPHTHALIC ACID AND BISPHENOL A)[J].Chemical Research and Application,1993,5(4):50-55. |
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| Authors: | Wang Yong Wu Dacheng Xie Xinguang Li Ruixia |
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| Abstract: | The polycondensation process of the aromatic liquid crystalline copolyesters from p-acetoxybenzoic acid, terephalic acid, and bisphenol A diacetate was studied in this paper. The degree of polymerization with the time was obtained by titrating the evolved acetic acid from the reaction system. The kinectics of melt polycondensation and the phase transition phenomena during the polycondensation were discussed emphatically. |
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| Keywords: | aromatic copolyester melt polycondensation kinetics phase transition |
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