碳酸乙烯酯与癸二酸二甲酯酯交换反应的研究  

Study of Transesterification of Ethylene Carbonate and Dimethyl Sebacate

作　　者：张丹[1] 李君华[1] 

机构地区：[1]辽宁工业大学化学与环境工程学院,辽宁锦州121001

出　　处：《辽宁工业大学学报（自然科学版）》2015年第5期321-322,327,共3页Journal of Liaoning University of Technology(Natural Science Edition)

基　　金：辽宁工业大学教师科研启动基金资助项目(X201211)

摘　　要：将碱金属化合物作为碳酸乙烯酯(EC)与癸二酸二甲酯(DMS)的酯交换反应的催化剂,考察其催化活性。该反应的产物之一是碳酸二甲酯(DMC),DMC是对环境友好的合成中间体,另一种产物是聚癸二酸乙二醇酯,属于脂肪族聚酯,具有可降解性。在相同条件下,Li NO3的催化性能最佳。考察了影响DMC收率的各种因素,包括催化剂用量、原料配比和反应时间,得到最佳反应条件:Li NO3与DMS的摩尔比为0.002、反应物料配比n(EC)∶n(DMS)=3∶1、反应时间3 h。此时,DMC收率达到了40.9%。The transesterification of ethylene carbonate（EC） and dimethyl sebacate（DMS） is studied over alkali metals catalysts. The main product is proved to be dimethyl carbonate（DMC）, which is an environmentally benign chemical intermediate. At the same time, a new kind of aliphatic polyester can be synthesized, which can be biodegraded. The results show Li NO3 has the highest activity. Effects of catalyst amount,ratio of reactant and reaction time on yields of dimethyl carbonate are investigated. When the reaction is carried with mole ratio catalyst to DMS of 0.002, mole ratio of EC to DMS of 3∶1, reaction time 3 h, the yield of DMC is 40.9%.

关 键 词：碳酸乙烯酯 癸二酸二甲酯 碳酸二甲酯 碱金属化合物 

分 类 号：O643[理学—物理化学]