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| 稀土催化聚酯和共聚酯的合成 | |
| 引用本文： | 张天骄,王桂花,武荣瑞. 稀土催化聚酯和共聚酯的合成[J]. 中国稀土学报, 1999, 17(4): 333-337 |
| 作者姓名： | 张天骄 王桂花 武荣瑞 |
| 作者单位： | 1. 四川大学高分子材料研究所,成都160065 2. 北京化工大学应用化学系,北京100029 3. 北京服装学院材料工程系,北京100029 |
| 摘 要： | 研究Ｌｎ＾３＋化合物对聚对苯二甲酸乙二酯及其共聚酯合成反应的催化效果。发现Ｌｎ＾３＋档促进酯化反应的进行，并可在缩聚阶段作为Ｓｂ２Ｏ３的助催化剂使用，通过粘度降测试表明，添加Ｌｎ＾３＋不影响聚酯、共聚酯的热稳定性。对Ｌｎ＾３＋催化酯化和缩聚反应机制进行探讨。 |
| 关 键 词： | 稀土 聚酯 催化剂 热稳定性 共聚酯 合成纤维 |
Synthesis of Polyester and Copolyester Catalyzed by Rare Earth Compounds |
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| Zhang Tianjiao,Wang Guihua,Wu Rongrui. Synthesis of Polyester and Copolyester Catalyzed by Rare Earth Compounds[J]. Journal of the Chinese Society of Rare Earths, 1999, 17(4): 333-337 | |
| Authors: | Zhang Tianjiao Wang Guihua Wu Rongrui |
| Abstract: | The catalytic effects of Ln 3 on synthesis of polyethylene terephthalate and its copolyesters were studied. The direct esterification reaction of terephthalate acid with ethylene glycol can be accelerated by the addition of Ln 3 , and the Ln 3 compound can be acted as promoter of Sb 2O 3 in the stage of polycondensation. The mechanism of esterification and polycondensation by the addition of Ln 3 was discussed. The heat stabilities of polyethylene terephthalate and its copolyesters obtained by the addition of Ln 3 were also investigated. |
| Keywords: | Rare earths Polyester Catalyst Heat stability |
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