| 嵌有长聚醚软段液晶共聚酯的合成 |
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| 引用本文： | 张鸿志,刘福荣,阎丰琪,潘景歧. 嵌有长聚醚软段液晶共聚酯的合成[J]. 高分子学报, 1993, 0(1): 61-65 |
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| 作者姓名： | 张鸿志 刘福荣 阎丰琪 潘景歧 |
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| 作者单位： | 北京大学化学系，北京大学化学系，北京大学化学系，北京大学化学系 北京，邮政编码:100871，北京，邮政编码:100871，北京，邮政编码:100871，北京，邮政编码:100871 |
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| 摘 要： | 本文用对苯二甲酰氯、对苯二酚、己二醇及分子量为1000或2000的聚丁二醇醚,经溶液缩聚制备了嵌段聚醚聚酯,其介晶单元含量只为21.2重量％(或37.5mol％)即可在宽的温度范围内呈现明显的液晶性.~1H-NMR谱表明,产物的聚酯段呈嵌段微观序列分布.
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| 关 键 词： | 嵌段聚醚聚酯 液晶共聚酯 微观序列分布 |
| 收稿时间： | 1991-04-30 |
SYNTHESIS OF LIQUID CRYSTALLINE COPOLYESTERS SEGMENTED WITH LONG POLYETHER BLOCKS |
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| ZHANG Hong-zhi,LIU Fu-rong,YAN Feng-qi,PAN Jing-qi. SYNTHESIS OF LIQUID CRYSTALLINE COPOLYESTERS SEGMENTED WITH LONG POLYETHER BLOCKS[J]. Acta Polymerica Sinica, 1993, 0(1): 61-65 |
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| Authors: | ZHANG Hong-zhi LIU Fu-rong YAN Feng-qi PAN Jing-qi |
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| Affiliation: | Department of Chemistry; Peking University; Beijing; Post code: 100871 |
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| Abstract: | A series of segmented polyether polyesters was prepared by solution polycondensation of terephthalic chloride, hydroquinone, 1,6-hexanediol and polytetramethylene glycol (PTMG). The anisotropy of melts was observed through the polarizing microscope, such as the melt of copolyester based on PTMG of molecular weight of 2,000 with a mesogen content of 21.2 wt-%(37.5 mol-%) showed anisotropy in a wide liquid crystalline temperature range of 65° and beyond 350℃, 1H-NMR studies revealed that all the products segmented with long polyether blocks have microstructure of polyester block sequence distribution. |
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| Keywords: | Segmented polyether polyester Liquid crystalline copolyester Microstructure sequence distribution |
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