热致性共聚酯液晶由于具有优异的热、机械及加工等性能,引起人们对其应用及基础研究的重视。本实验室曾对以不同长度碳链为软间隔段的共聚酯进行了研究,在产物介晶单元含量不高(约20％)时即可表现出明显液晶性。本文选用以双酚A(BPA)或双酚S(BPS)-对苯二甲酸酯为间隔段进行了研究。这一间隔段自身所成的高 Thermotropic copolyester liquid crystal due to its excellent thermal, mechanical and processing properties, causing people to its application and basic research attention. In our laboratory, copolyesters with different lengths of carbon chains as soft spacer have been studied. When the content of mesogenic unit is low (about 20%), the copolymer shows obvious liquid crystallinity. In this paper, the use of BPA or bisphenol S (BPS) - terephthalate as a spacer segment were studied. The height of this interval itself