| 芳香-脂肪族共聚酰胺的液晶性能 |
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| 引用本文： | 陈鸣飞,刘德山,周其庠.芳香-脂肪族共聚酰胺的液晶性能[J].清华大学学报(自然科学版),1987(3). |
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| 作者姓名： | 陈鸣飞 刘德山 周其庠 |
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| 作者单位： | 化学工程系
(陈鸣飞，刘德山)，化学工程系 (周其庠) |
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| 摘 要： | 采用低温溶液缩聚法，以对苯二胺、对苯二甲酰氯和己二酰氯为单体合成了一系列不同己二酰单元含量的芳－脂族共聚酞胺．并对其硫酸溶液的液晶性能进行了研究。结果表明，该类共聚酰胺在己二酰单元含量低于９０％（ｍｏｌ）情况下，其硫酸溶液仍保持溶致液 晶特性。经偏光显微镜、小角激光光散射和宽角Ｘ光衍射实验证明，这类芳－脂族共聚酰胺硫酸液晶溶液属向列型液晶，其临界浓度Ｃ＊随己二酰单元含量的增加而增加。
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| 关 键 词： | 芳香-脂肪族共聚酰胺 液晶 溶液 |
Study on Liquid Crystalline Properties of Aromatic-Aliphatic Copolyamides |
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| Chen Mingfei,Liu Deshan,Zhou Qixiang.Study on Liquid Crystalline Properties of Aromatic-Aliphatic Copolyamides[J].Journal of Tsinghua University(Science and Technology),1987(3). |
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| Authors: | Chen Mingfei Liu Deshan Zhou Qixiang |
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| Institution: | Department of Chemical Engineering |
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| Abstract: | A series of aromatic-aliphatic copolyamides with various adipoyl composition were prepared from p-phenylenediamine, terephthoyl chloride and adipoyl chloride by low temperature solution polycondensation. The liquid crystalline properties of the series of copolysmides in 100% sulfuric acid were studied. It was found that the solutions of the copolyamides with adipoyl composition below 90% (mol.) show liquid crystalline behaviour and it was determined by polarized microscopy that the critical concentration increases with adipoyl composition. It was confirmed that this lyotropic liquid crystal is nematic by small angle laser scattering, wide angle X-ray diffraction and polarized microscopy. |
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| Keywords: | aromatic-aliphatic copolyamide liquid crystal solution |
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