| 含偶氮侧墓的聚酯型热致液晶高分子非线性光学材料的合成与表征(英) |
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| 引用本文： | 张会旗,张莹,甘湘萍,阴航明,孙经武.含偶氮侧墓的聚酯型热致液晶高分子非线性光学材料的合成与表征(英)[J].天津大学学报(英文版),1999(1). |
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| 作者姓名： | 张会旗 张莹 甘湘萍 阴航明 孙经武 |
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| 作者单位： | 天津大学化工学院(张会旗，甘湘萍，阴航明，孙经武)，南开大学高分子化学研究所吸附分离功能高分子材料国家重点实验室(张莹) |
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| 摘 要： | 采用高温溶液缩聚方法合成了一系列含偶氮侧基的聚酯型热致液晶高分子，利用红外光谱、元素分析、TG－DTA、热台偏光显微镜及X-射线衍射等手段对聚合物的结构、热稳定性、相转变行为及结晶性能进行了研究.结果表明，所合成的各聚合物均为向列相液晶高分子，而且它们均具有较高的玻璃化转变温度及很好的热稳定性.
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| 关 键 词： | 偶氮苯 聚酯 热致液晶高分子 向列相液晶 非线性光学材料 |
SYNTHESIS AND CHARAOTERIZATION OF NOVEL THERMOTROPIO LIQUID ORYSTALLINE POLYESTERS BEARING NONLINEAR OPTICAL AZOBENZENE SIDE GROUP |
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| ZHANG Huiqi.SYNTHESIS AND CHARAOTERIZATION OF NOVEL THERMOTROPIO LIQUID ORYSTALLINE POLYESTERS BEARING NONLINEAR OPTICAL AZOBENZENE SIDE GROUP[J].Transactions of Tianjin University,1999(1). |
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| Authors: | ZHANG Huiqi |
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| Abstract: | A series of novel thermotropic liquid crystalline polyesters bearing nonlinear optical azobenzene side group were synthesized by high temperature solution polycondensation and their structures,thermal stability, phase transition behavior and crystallinity were characterized by IR,elemental analysis, TG-DTA, polarizing optical microscope (POM) equipped with a hot stage and X-ray diffraction techniques. The results demonstrate that all the synthesized polyesters exhibit nematic liquid crystalline phases and show relatively high glass transition temperatures and good thermal stability. |
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| Keywords: | azobenzene polyester thermotropic liquid crystalline polymer nematic phase nonlinear optical material |
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