| 具有液晶性新型聚芳醚酮的合成与表征 |
| |
| 引用本文： | 张善举,郑玉斌,吴忠文,田明文,杨德才. 具有液晶性新型聚芳醚酮的合成与表征[J]. 高等学校化学学报, 1998, 19(6): 984-988 |
| |
| 作者姓名： | 张善举 郑玉斌 吴忠文 田明文 杨德才 |
| |
| 作者单位： | 1. 吉林大学化学系, 长春, 130023;2. 中国科学院长春应用化学研究所, 长春, 130022 |
| |
| 基金项目： | 国家“863”重大项目,中国科学院高分子物理开放实验室基金 |
| |
| 摘 要： | 通过联苯二酚(介晶基元)、取代对苯二酚(破坏结晶基元)与4,4'-二氟二苯酮的亲核取代反应合成了一系列具有液晶性的新型聚芳醚酮,采用DSC、PLM和WAXD等方法对聚合物的研究表明:联苯含量为70%时聚合物表现为向列相,联苯含量为50%时聚合物出现近晶相,在外力场作用下,向列相液晶容易形成明暗交替的条带织构.
|
| 关 键 词： | 聚芳醚酮 液晶聚合物 液晶行为 |
| 收稿时间： | 1997-04-03 |
The Synthesis and Characterization of the Novel Poly(aryl ether ketone)s with Liquid Crystallinity |
| |
| ZHANG Shan-Ju,ZHENG Yu-Bin,WU Zhong-Wen,TIAN Ming-Wen,YANG De-Cai. The Synthesis and Characterization of the Novel Poly(aryl ether ketone)s with Liquid Crystallinity[J]. Chemical Research In Chinese Universities, 1998, 19(6): 984-988 |
| |
| Authors: | ZHANG Shan-Ju ZHENG Yu-Bin WU Zhong-Wen TIAN Ming-Wen YANG De-Cai |
| |
| Affiliation: | 1. Department of Chemistry, Jilin University, Changchun, 130023;2. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022 |
| |
| Abstract: | The novel poly(aryl ether ketone)s with liquid crystallinity were synthesized by nucleophilic substitution reactions of 4,4′-biphenol and substituted hydroquinone with 4,4′-difluorobenzophenone and their thermotropic liquid crystalline properties were characterized by DSC, PLMand WAXD. The copolymers containing 70% biphenol formed nematic phase while the copolymer containing 50% biphenol exhibited smectic texture. The banded textures were formed after shearing the sample in the nematic liquid crystalline state. The identification of the structures in each mesogenic phase has been carried out by combining WAXD with PLM and DSC. |
| |
| Keywords: | Poly(aryl ether ketone) Liquid crystalline polymer Liquid crystalline behavior |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《高等学校化学学报》浏览原始摘要信息 |
|
点击此处可从《高等学校化学学报》下载全文 |
|
