锌粉催化3-吗啉酮和ε-己内酯的开环聚合反应  

Ring Opening Polymerization of 3-Morpholinone and ε-Caprolactone with Zinc Powder as Catalyst

作　　者：白毓[1] 苏新梅 张志琴[1] 李蔚[1] 曲凡歧[1] 

机构地区：[1]武汉大学化学与分子科学学院,湖北武汉430072 [2]新乡师范专科学校化学系,河南新乡453000

出　　处：《武汉大学学报（理学版）》2004年第2期173-176,共4页Journal of Wuhan University:Natural Science Edition

基　　金：国家重点基础研究发展规划项目(G1999064703)

摘　　要：采用锌粉作催化剂(I)对3 吗啉酮(M)和ε 己内酯(CL)进行催化开环聚合得到一种新型酯酰胺聚合物聚(3 吗啉酮 ε 己内酯).研究了3 吗啉酮和催化剂锌粉的质量比m(M)/m(I),3 吗啉酮和ε 己内酯的摩尔比n(M)/n(CL),反应温度以及反应时间对聚合反应的影响.实验结果表明,锌粉具有较好的催化活性.在实验选定的最佳反应条件下(反应温度120℃,反应时间24h,m(M)/m(I)=50∶1,n(M)/n(CL)=1∶2),可得到数均分子量为13509的聚(3 吗啉酮 ε 己内酯),产率为79%.A new kind of polyesteramide based on 3-morpholinone and ε-caprolactone was synthesized by ring opening polymerization with zinc powder as catalyst. The polymer was characterized by ^(1)H NMR, GPC and FT-IR. The effect of time, temperature and ratio of m(M)/m(I), n(M)/n(CL) on the reaction was studied. The results show that the optimal reaction temperature is 120℃; the optimal duration of reaction is 24 h; the optimal ratio of m(M)/m(I) is 50∶1; the optimal ratio of n(M)/n(CL) is 1∶2. Under the optimal condition the polymer whose M_(n) was 13 509 could be obtained while the weight yield was 79%.

关 键 词：聚(3-吗啉酮-ε-己内酯) Ε-己内酯 开环聚合反 聚酯酰胺 锌粉 3-吗啉酮 

分 类 号：O633.22[理学—高分子化学] O643.36[理学—化学]