氧化锌-辛酸亚锡催化合成丙交酯  

The Synthesis of Lactide Catalyzed by ZnO-Sn(Oct)_2

作　　者：陈佳[1] 程超[1] 王远亮[1] 

机构地区：[1]重庆大学生物工程学院

出　　处：《高分子材料科学与工程》2007年第3期74-76,共3页Polymer Materials Science & Engineering

基　　金：国家自然科学基金项目(2003AA32X210)

摘　　要：采用氧化锌和辛酸亚锡为催化剂,在高真空条件下共同催化合成丙交酯。比较了两种催化剂加入方式的不同对丙交酯产率的影响,发现当脱完自由水后同时加入氧化锌(ω=1%)和2 mL辛酸亚锡,丙交酯的粗产率可以达到90%以上。D,L-lactide is an indispensable material for peparaing poly-D,L-lactide. In this paper, with D,L-lactic acid as raw material and ZnO-Sn（Oct）2 as catalyst, the lactide was synthesized by the oligomerization and depolymerization under high vacuum. Effects of the ways of adding the two catalysts on yield of lactide were discussed. The results show that the yield of lactide is beyond 90% with adding ZnO（ω=1%） and Sn（Oct）2（2 mL） at the same time after dehydration.

关 键 词：氧化锌 辛酸亚锡 丙交酯 产率 

分 类 号：TQ316.314[化学工程—高聚物工业]