| 刚柔相嵌液晶高分子的赝二级相变温度 |
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| 引用本文： | 王新久.刚柔相嵌液晶高分子的赝二级相变温度[J].高分子学报,1995,0(2):228-232. |
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| 作者姓名： | 王新久 |
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| 作者单位： | 清华大学化学系和北京液晶工程研究中心 100084 |
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| 摘 要： | 讨论了刚柔相嵌液晶高分子的向列相－各向同性相转变与其分子结构的关系，给出了该一级相变的赝二级相变温度Ｔ与这类液晶高分子的液晶基元和间隔基的长度，柔顺性（相关长度）以及它们之间的相互作用的关系的解析表示式，分析了液晶基元与间隔基连接处的表观弯曲（接口效应）对Ｔ的影响，文中的结论与实验相符。
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| 关 键 词： | 液晶高分子 刚柔相嵌 相转变温度 赝二级 |
| 收稿时间： | 1994-05-06 |
PSEUDO SECOND ORDER PHASE TRANSITION TEMPERATURE OF NEMATIC POLYMERS WITH SPACERS |
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| WANG Xin-jiu.PSEUDO SECOND ORDER PHASE TRANSITION TEMPERATURE OF NEMATIC POLYMERS WITH SPACERS[J].Acta Polymerica Sinica,1995,0(2):228-232. |
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| Authors: | WANG Xin-jiu |
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| Institution: | Department of Chemistry; Tsinghua University and Bening ERC of Liquid Crystals; Bening 100084 |
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| Abstract: | The nematic-isotropic (N-I) transition of nematic polymers with semiflexible spacers was examined. The pseudo second order phase transition temperature,T*, of this transition was analytically expressed as a function of length of mesogens and spacers, persistence length of spacer chains and the interactions of andbetween mesogens and spacers. The hinge effect on T* of mesogens and spacersalong nematic polymer chains was envisaged, based on above theory. The predictions were in agreement with experiments. |
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