| 热致性液晶嵌段共聚酯的合成及表征 |
| |
| 引用本文： | 谭松庭,张海良,王霞瑜.热致性液晶嵌段共聚酯的合成及表征[J].高分子学报,1998,32(2):167-171. |
| |
| 作者姓名： | 谭松庭 张海良 王霞瑜 |
| |
| 作者单位： | 1. 中山大学材料科学研究所,广州,510275
2. 湘潭大学化学系,湘潭,411105 |
| |
| 摘 要： | 以对羟基苯甲酸甲酯和乙二醇为原料，通过熔融酯交换反应合成中间体（Ⅰ）：双（对一羟基苯甲酸）乙二醇酯．用溶液缩合法合成了三种不同嵌段长度的液晶嵌段共聚酯（Ｐ２４７、Ｐ２７７、Ｐ２７４）作为液晶聚合物与热塑性聚合物的“增容剂”．ＦＴＩＲ，Ｈ ＮＭＲ分析表明，嵌段共聚酯的结构和组成与分子设计基本相符；偏光显微镜证实，嵌段共聚酯在一定温度范围内为热致性向列型液晶，在较低温度为均相，在较高温度为两相结构．
|
| 关 键 词： | 液晶聚合物，嵌段共聚酯，熔融酯交换反应 |
SYNTHESIS AND CHARACTERIZATION OF THERMOTROPIC LIQUID CRYSTALLINE BLOCK COPOLYESTERS |
| |
| TAN Songting,ZHANG Hailiang,WANG Xiayu.SYNTHESIS AND CHARACTERIZATION OF THERMOTROPIC LIQUID CRYSTALLINE BLOCK COPOLYESTERS[J].Acta Polymerica Sinica,1998,32(2):167-171. |
| |
| Authors: | TAN Songting ZHANG Hailiang WANG Xiayu |
| |
| Abstract: | The intermediate(Ⅰ),polymethylene bis(p-ethoxycarbonyloxy benzoates),was prepared from solbrol and hexandiol by melting transesterification reaction.The block copolyesters with different block length were synthesized from terephthaloyl dichoride,hexandiol and (Ⅰ).The structure and compositions of these block copolyesters were analysed by FTIR and H NMR.The liquid crystalline behaviors of the block copolyesters were characterized by DSC,POM. |
| |
| Keywords: | Liquid crystalline polymer Block copolyesters Melting state transesterification reaction |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
