梁金花,徐玥,任晓乾,姜岷,李振江

• 1:南京工业大学生物与制药工程学院
• 2:南京工业大学化学化工学院

摘要(Abstract)：

采用咪唑、1,3-丙磺酸内酯、1,2-二溴乙烷、1,4-二溴丁烷和聚乙二醇-200等为原材料合成了四种功能性磺酸类咪唑离子液体,考察了这四种离子液体催化剂酯化合成丁二酸丁二醇酯的性能,研究了催化剂用量、醇酸摩尔比、反应时间等因素对酯化反应的影响,并与钛酸正丁酯及钛酸异丙酯催化剂进行对比,得出其较佳工艺条件为:使用双-(3-丙烷磺酸-1-亚丁基咪唑)磺酸功能化离子液体为催化剂,用量为丁二酸摩尔质量的0.40%,醇酸比为1.3:1,反应温度160℃,反应时间为2 h,酯化率最高达到94.2%。

关键词(KeyWords)： 离子液体;丁二酸丁二醇酯;酯化;催化

Abstract:

Keywords:

基金项目(Foundation): “863”重大项目(2007AA06A402);; 材料化学工程重点实验室开放项目;; 973项目(2009CB724701)

作者(Author): 梁金花,徐玥,任晓乾,姜岷,李振江

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