| 聚芳醚酮与液晶聚酯多嵌段共聚物的合成表征 |
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| 引用本文： | 杨延华,戴晓晖,周兵,马荣堂,姜振华.聚芳醚酮与液晶聚酯多嵌段共聚物的合成表征[J].高等学校化学学报,2005,26(3):589-591. |
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| 作者姓名： | 杨延华 戴晓晖 周兵 马荣堂 姜振华 |
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| 作者单位： | 1. 吉林大学化学学院,长春 130023;
2. 江苏大学包装工程系,镇江 212013 |
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| 摘 要： | 近年来，以热塑性聚合物为基体，热致液晶聚合物(TLCP)作为增强剂的高分子原位复合材料由于其具有优异的机械性能和优良的成型加工性能，已引起各国工作者的普遍关注和极大兴趣．然而由于自聚集和相分离作用的影响，大部分液晶聚合物与通常的热塑性聚合物基体基本不相容或弱相容，这对于提高原位复合材料的力学性能不利．
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| 关 键 词： | 聚芳醚酮 嵌段共聚物 热致液晶 向列相织构 |
| 文章编号： | 0251-0790(2005)03-0589-03 |
| 收稿时间： | 2004-03-06 |
Synthesis and Characterization of Block Copolymers Containg Poly(aryl ether ketone) and Liquid Crystalline Polyester Segments |
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| YANG Yan-Hua,DAI Xiao-Hui,ZHOU Bing,MA Rong-Tang,JIANG Zhen-Hua.Synthesis and Characterization of Block Copolymers Containg Poly(aryl ether ketone) and Liquid Crystalline Polyester Segments[J].Chemical Research In Chinese Universities,2005,26(3):589-591. |
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| Authors: | YANG Yan-Hua DAI Xiao-Hui ZHOU Bing MA Rong-Tang JIANG Zhen-Hua |
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| Institution: | 1. College of Chemistry, Jilin University, Changchun 130023, China;
2. Department of Packaging Engineering, Jiangsu University, Zhenjiang 212013, China |
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| Abstract: | Block copolymers containing poly(aryl ether ketone) unit and different lengths of thermotropic liquid crystalline polyesters(TLCP) segments were synthesized by high temperature solution polymerization. The chemical structure, thermal properties and liquid crystalline behavior of the block copolymers were investigated by FTIR, DSC and PLM respectively. A single glass transition revealed that the two blocks had good a compatibility. The length of TLCP segment had a significant influence on the copolymer's liquid crystalline behavior. When the molecular weight of TLCP reduced to 2965, liquid crystallinity of copolymer disappeared. The block copolymers showed a typical nematic threaded texture which differed from polyester's. |
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| Keywords: | Poly(aryl ether ketone) Block copolymer Thermotropic liquid crystalline Nematic texture |
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