| CRYSTALLIZATION BEHAVIOR OF A THERMOTROPIC LIQUID CRYSTAL COPOLYESTER |
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| 引用本文： | 张国耀,易国桢,刘东,吴立衡. CRYSTALLIZATION BEHAVIOR OF A THERMOTROPIC LIQUID CRYSTAL COPOLYESTER[J]. 高分子科学, 1993, 0(2): 109-114 |
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| 作者姓名： | 张国耀 易国桢 刘东 吴立衡 |
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| 作者单位： | Textile Academy，The Ministry of Textile Industry，Beijing P.O.Box 651 Beijing，100025，Textile Academy，The Ministry of Textile Industry，Beijing，Textile Academy，The Ministry of Textile Industry，Beijing，Textile Academy，The Ministry of Textile Industry，Beijing |
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| 摘 要： | A thermotropic liquid crystal copolyester resin based on p-hydroxybenzoic acid, 2, 6-naphthoic acid, hydroxyquinone and PET was synthesized by melt condensation and studied. The results based on DSC and X-ray diffraction indicated that there were a rapid and a slow crystallization processes for the copolyester at certain conditions. A critical temperature was suggested, below which the slow crystallization could hardly happen. Above the critical temperature the extent of the slow crystallization process depended not only on annealing temperature but also on the annealing time. A fine crystal structure with high melting point and narrow diffraction peak was formed under favorable conditions.
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| 收稿时间： | 1991-12-25 |
CRYSTALLIZATION BEHAVIOR OF A THERMOTROPIC LIQUID CRYSTAL COPOLYESTER* |
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| ZHANG Guoyao,YI Guozheng,LIU Dong,WU Liheng. CRYSTALLIZATION BEHAVIOR OF A THERMOTROPIC LIQUID CRYSTAL COPOLYESTER*[J]. Chinese Journal of Polymer Science, 1993, 0(2): 109-114 |
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| Authors: | ZHANG Guoyao YI Guozheng LIU Dong WU Liheng |
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| Affiliation: | Textile Academy; The Ministry of Textile Industry; Beijing P.O.Box 651 Beijing; 100025; Beijing |
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| Abstract: | A thermotropic liquid crystal copolyester resin based on p-hydroxybenzoic acid, 2, 6-naphthoic acid, hydroxyquinone and PET was synthesized by melt condensation and studied. The results based on DSC and X-ray diffraction indicated that there were a rapid and a slow crystallization processes for the copolyester at certain conditions. A critical temperature was suggested, below which the slow crystallization could hardly happen. Above the critical temperature the extent of the slow crystallization process depended not only on annealing temperature but also on the annealing time. A fine crystal structure with high melting point and narrow diffraction peak was formed under favorable conditions. |
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| Keywords: | Thermotropic liquid crystal copolyester LCP crystallization. |
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