Amberlyst-15型离子交换树脂催化γ-丁内酯酯交换反应的研究  

Study on transesterification of γ-butyrolactone with alcohols catalyzed by amberlyst-15

作　　者：赵利飞[1] 刘喜莹[1] 李文红[2] 康旺[1] 李媛[1] 

机构地区：[1]河北师范大学化学与材料科学学院,河北石家庄050016 [2]河北工业职业技术学院环境与化学工程系,河北石家庄050091

出　　处：《化学研究与应用》2012年第3期488-492,共5页Chemical Research and Application

基　　金：国家自然科学基金项目(20972040)资助;河北省自然科学基金项目(B2009000255)资助

摘　　要：从反应温度、时间、催化剂的用量、催化剂的重复使用、产物的分离等方面系统研究了γ-丁内酯与甲醇的酯交换反应,得到了优化的反应条件,即,反应温度为28℃,反应时间为10h,γ-丁内酯/甲醇/Amberlyst-15为0.9∶12.5∶12.5(V/V/m)。在该反应条件下,酯交换产物的分离产率达到77%。同时考察了γ-丁内酯与其它6种醇的酯交换反应,证明了在较高反应温度下,该树脂对其它醇仍有较好的催化活性(产物的质量百分数为50%～60%)。然而,随着醇体积的增大,反应的转化率逐渐下降。The effects of reaction time,reaction temperature,amount and reused times of the catalyst as well as the isolation method of transesterification products on transesterification of γ-butyrolactone with methanol were investigated systematically.The optimal reaction conditions of above reaction and good isolated yield（reacting at 28°C for 10h with γ-butyrolactone to methanol to Amberlyst-15 of 0.9∶12.5∶12.5（V/V/m）,yield：77%）were obtained.In the same time the transesterification of γ-butyrolactone with six other alcohols was also studied and the results indicated that Amberlyst-15 ion exchange resin still exhibit moderate catalytic activity（mass percent of products：50%~60%）,but the performance of the catalyst get deterioration with increase of the volume of alcohols.

关 键 词：Γ-丁内酯 Amberlyst-15 酸性离子交换树脂 酯交换反应 

分 类 号：O621.256.4[理学—有机化学]