| HTH—4液晶聚酯合成路线的改进 |
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| 引用本文： | 张海良,周建良.HTH—4液晶聚酯合成路线的改进[J].华中师范大学学报(自然科学版),1997,31(2):182-185. |
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| 作者姓名： | 张海良 周建良 |
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| 作者单位： | 湘潭大学化学化工学院 |
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| 摘 要： | 以对羟基苯甲酸甲酯和１，４－丁二醇为原料，在酯交换催化剂Ｔｉ（ＯＣ４Ｈ９－ｎ）４／Ｓｎ（ｎ－Ｃ４Ｈ９）２（Ｃ１１Ｈ２３ＣＯＯ）２存在下，采用熔融酯交换反应合成出单体：双（对羟基苯甲酸）丁二醇酯（ＢＢＨＢ）。然后再与对苯二甲酰氯分别在３种不同的溶剂中进行溶液缩聚，合成出３个不同分子量的ＨＴＨ－４聚合物样品，并用ＤＳＣ、ＰＯＭ对其液晶性进行了表征。
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| 关 键 词： | HTH－4 液晶 聚酯 热致性液晶 熔融酯交换 合成 |
AN IMPROVED SYNTHESIS OF A LIQUID CRYSTALLINE POLYESTER HTH 4 |
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| Zhang Hailiang,Zhou Jianliang,Huang Qigu,Wang Xiayu.AN IMPROVED SYNTHESIS OF A LIQUID CRYSTALLINE POLYESTER HTH 4[J].Journal of Central China Normal University(Natural Sciences),1997,31(2):182-185. |
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| Authors: | Zhang Hailiang Zhou Jianliang Huang Qigu Wang Xiayu |
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| Abstract: | butylene bis(p hydroxybenzoates) (BBHB) were prepared from solbral and 1,4 butanediol by melted state transesterification reaction with Ti(OC 4H 9 n )/Sn( n C 4H 9) 2(C 11 H 23 COO) 2 as the catalyst. Three liquid crystalline polyesters were synthesized from terephthalyl dichloride and BBHB.Thermotropic liquid crystalline properties of these polyesters were identified by differential scanning calorimetry and polarizing microscope with a hot stage. |
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| Keywords: | HTH 4 liquid crystalline polyester thermotropic liquid crystal melted state transesterification |
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