| 聚十二烷二元酸酯及其共聚酯的合成 |
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| 引用本文： | 刘民英,赵清香,王玉东,魏瑛辉,曹少魁.聚十二烷二元酸酯及其共聚酯的合成[J].功能高分子学报,2003,16(4):521-526. |
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| 作者姓名： | 刘民英 赵清香 王玉东 魏瑛辉 曹少魁 |
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| 作者单位： | 郑州大学材料工程学院,河南,郑州,450052 |
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| 基金项目： | 河南省自然科学重点基金项目(0111040100) |
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| 摘 要： | 通过直接熔融缩聚法合成了一系列聚十二烷二元酸酯，用GPC、^1H—NMR、FTIR对产物进行了表征，并讨论了预聚酯合成时催化剂浓度和种类、预聚反应温度、预聚初始醇酸摩尔比对聚合反应的影响。结果表明，在所选的三个催化剂体系中，氮化亚锡二水合物与对甲苯磺酸复合催化剂的催化效果最好；最佳反应条件：n对甲苯横酯／n二元酸=0．0021～0．0032，反应温度为160～180℃，醇酸摩尔比范围为1．05—1.10。
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| 关 键 词： | 聚十二烷二元酸酯 直接熔融缩聚法 共聚酯 合成 反应条件 降解性能 结构表征 |
| 文章编号： | 1008-9357(2003)04-0521-06 |
| 修稿时间： | 2003年6月9日 |
Study on the Synthesis of Polydodecanedioate and its Copolyesters |
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| LIU Min-ying,ZHAO Qing-xiang,WANG Yu-dong,WEI Ying-hui,CAO shao-kui.Study on the Synthesis of Polydodecanedioate and its Copolyesters[J].Journal of Functional Polymers,2003,16(4):521-526. |
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| Authors: | LIU Min-ying ZHAO Qing-xiang WANG Yu-dong WEI Ying-hui CAO shao-kui |
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| Abstract: | A series of polydodecanedioates were synthesized by direct melt polycondensation. The polyesters were characterized by GPC, 'H-NMR and FTIR, and the pre-polycondensation conditions, including the varieties of catalyst and its content, the reaction temperature and initial diol/diacid molar ratio were investigated. The results show that the catalytic efficiency of complicated catalyst of tin( II) chloride dihydrate andp -toluene-sulfonic acid is higher than that of the others. Furthermore, the suitable reaction temperature is 160 - 1801, the ratio of p -toluene-sulfonic acid to diacids is 0. 0021 - 0. 0032 and initial diol/diacid molar ratio is 1.05 -1. 10. |
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| Keywords: | 1 12-dodecanedioic acid polyester pre-polyester copolyester polycondensation |
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