离子液体支载稀土催化剂催化 2,2-二甲基-三亚甲基碳酸酯均聚及其与ε-己内酯的共聚

催化学报 , 2007, 28(7): 588-590.

离子液体支载稀土催化剂催化 2,2-二甲基-三亚甲基碳酸酯均聚及其与ε-己内酯的共聚

熊玉兵 ^1, , 倪旭峰 ^2, , 樊玲 ^3, , 沈之荃 ^4,

1.西北师范大学化学化工学院,甘肃省高分子材料重点实验室,甘肃兰州,730070

2.浙江大学高分子科学与工程系高分子科学研究所,教育部大分子合成与功能构造重点实验室,浙江杭州,310027

3.浙江大学高分子科学与工程系高分子科学研究所,教育部大分子合成与功能构造重点实验室,浙江杭州,310027

4.浙江大学高分子科学与工程系高分子科学研究所,教育部大分子合成与功能构造重点实验室,浙江杭州,310027

基金项目: 国家自然科学基金(20434020) 国家重点基础研究发展计划(973计划)(2005CB;623800)

关键词：稀土 , 离子液体 , 2,2-二甲基-三亚甲基碳酸酯 , ε-己内酯 , 共聚

Ring-Opening Polymerization of 2,2-Dimethyltrimethylene Carbonate and Its Copolymerization with ε-Caprolactone by Ionic Liquid-Supported Rare Earth Metal Complex Catalysts

首次合成了离子液体支载稀土催化剂,并探讨了其催化 2,2-二甲基-三亚甲基碳酸酯(DTC)均聚及其与ε-己内酯(ε-CL)的共聚,结果表明该新型催化剂能有效地催化DTC的均聚及其与ε-CL的共聚. 研究了不同稀土以及加料顺序等反应条件对聚合的影响,发现轻稀土的催化活性比重稀土高,其中离子液体支载La催化剂的催化活性最高,而通过控制不同的加料顺序可以制备DTC和ε-CL的无规及嵌段共聚物. 对共聚物结构进行了表征.

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离子液体支载稀土催化剂催化 2,2-二甲基-三亚甲基碳酸酯均聚及其与ε-己内酯的共聚

Ring-Opening Polymerization of 2,2-Dimethyltrimethylene Carbonate and Its Copolymerization with ε-Caprolactone by Ionic Liquid-Supported Rare Earth Metal Complex Catalysts

参考文献