| 热致型液晶聚合物的玻璃态结构及形成热力学和动力学 |
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| 引用本文： | 朱珍,吴和融,李世瑨.热致型液晶聚合物的玻璃态结构及形成热力学和动力学[J].华东理工大学学报(自然科学版),1991(6). |
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| 作者姓名： | 朱珍 吴和融 李世瑨 |
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| 作者单位： | 华东化工学院材料科学研究所
(朱珍，吴和融)，华东化工学院材料科学研究所(李世瑨) |
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| 摘 要： | 利用热台偏光显微镜、差示扫描量热法(DSC)、广角X-射线衍射(WAXD)等分析测试手段,对聚1,4-苯二氧乙酸-1,8-二氧代辛撑基二苯酚酯的织态结构及相态进行了研究。结果表明,该聚合物在经过一次加热冷却循环后。生成了液晶玻璃态。对相转变的转变熵值的分析表明,上述结论是正确的。并在热力学与动力学共同作用的基础上,讨论了热致型液晶聚合物液晶玻璃态的形成,提出了固化温度大于结晶温度是液晶玻璃态产生的必要条件。
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| 关 键 词： | 聚芳酯 聚酯 织态结构 转变熵 液晶玻璃态 |
Structure and Formation Thermodynamics and Kinetics of Thermotropic Liquid Crystalline Glass |
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| Zhu Zhen,Wu Herong and Li Shijin.Structure and Formation Thermodynamics and Kinetics of Thermotropic Liquid Crystalline Glass[J].Journal of East China University of Science and Technology,1991(6). |
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| Authors: | Zhu Zhen Wu Herong and Li Shijin |
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| Institution: | Institute of Materials Science and Engineering |
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| Abstract: | The texture and phase structure of the polyester from 1,4-dichloroacetate hydroquinone and 4,4'-dihydroxy-1,8-diphenoxyhexane were investigated with hot-stage polarized light microscopy and DSC. The results showed that the liquid caystalline glass of the polyester is obtained after a cycle of heating and cooling, The analysis of phase transition entropy confirmed above conclusion. In addition, the formation of liquid crystalline glass of thermotropic polymers was analyzed on the basis of thermodynamics and kinetics. |
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| Keywords: | polyarylates polyester texture phase transition entropy liquid crystalline glass |
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