| 甲基取代的新型聚醚醚酮及其共聚物的合成、表征和性能研究 |
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| 引用本文： | 李慧,周宏伟,陈春海,吴忠文,张榕本,于澍燕.甲基取代的新型聚醚醚酮及其共聚物的合成、表征和性能研究[J].高等学校化学学报,2003,24(10):1911-1914. |
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| 作者姓名： | 李慧 周宏伟 陈春海 吴忠文 张榕本 于澍燕 |
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| 作者单位： | 1. 中国科学院化学研究所高分子物理与化学国家重点实验室, 北京 100080;
2. 吉林大学麦克德尔米德实验室, 国家八六三计划特种工程塑料研究开发中心, 长春 130012 |
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| 基金项目： | 国家自然科学基金 (批准号 :2 0 10 40 0 3 )资助 |
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| 摘 要： | 设计合成了一种甲基侧基取代的可溶性聚芳醚酮均聚物PETMDEK,同时合成了一系列不同比例的无规共聚物PETMDEK-PEDEK,考察了共聚组成对聚合物性能的影响.随着共聚物中可溶性PETMDEK组分的不断增加,其聚集态结构也发生变化,出现从结晶→液晶→结晶→无定形固体的转变,同时溶解性也由可溶向不溶转变.本文还侧重研究了PETMDEK组分摩尔分数为20%的无规共聚物的热致液晶行为.
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| 关 键 词： | 聚芳醚酮 无规共聚物 热致液晶 |
| 文章编号： | 0251-0790(2003)10-1911-04 |
| 收稿时间： | 2002-09-11 |
Synthesis, Characterization and Property Studies on a Methyl-substituted Poly(ether ether ketone) and Its Copolymers |
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| LI Hui ,ZHOU Hong-Wei ,CHEN Chun-Hai ,WU Zhong-Wen ,ZHANG Rong-Ben ,YU Shu-Yan.Synthesis, Characterization and Property Studies on a Methyl-substituted Poly(ether ether ketone) and Its Copolymers[J].Chemical Research In Chinese Universities,2003,24(10):1911-1914. |
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| Authors: | LI Hui ZHOU Hong-Wei CHEN Chun-Hai WU Zhong-Wen ZHANG Rong-Ben YU Shu-Yan |
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| Institution: | 1. Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China;
2. Jilin University Alan G. MacDiarmid Laboratory, National Plan R&D Center for High-Performance Engineering Plastics, Changchun 130023, China |
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| Abstract: | Anovel soluble methyl-substituted poly(ether ether ketone) PETMDEK was synthesized for the first time by aromatic nucleophilic substitution polycondensation.Aseries of random copolymers PETMDEK-PEDEK with different compositions were prepared and their properties were studied.The copolymers exhibit changes from crystals→liquid crystals→crystals→amorphous solid transitions with the increase of the content of PETMDEK.The copolymers also change from soluble substance to insoluble one.The thermotropic liquid crystalline behavior of 20% PETMDEK-PEDEK copolymer was characterized by DSC and PLM. |
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| Keywords: | Poly(ether ether ketone)s Random copolymers Thermotropic liquid crystal |
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