希夫碱锌金属配合物催化ε-己内酯开环聚合的研究  

Study on Ring-opening Polymerization of ε-caprolactone Catalyzed by Zn(Ⅱ) Schiff-base Complex

作　　者：王岸 石奇[1] 郭海顺 惠磊 Wang An;Shi Qi;Guo Haishun;Hui Lei(School of Chemical Engineering,Xi'an University,Xi'an 710065,China)

机构地区：[1]西安文理学院化学工程学院,陕西西安710065

出　　处：《山东化工》2018年第20期5-7,共3页Shandong Chemical Industry

基　　金：2017年陕西省大学生创新创业训练计划项目(2383);西安市科技计划项目(2017CGWL10);陕西省教育厅专项科研计划项目(17JK1125)

摘　　要：以希夫碱锌金属配合物[LZn]为催化剂,催化ε-己内酯开环聚合。以甲苯为溶剂,采用[LZn]为主催化剂,4-二甲氨基吡啶为助催化剂,聚合温度为80℃,反应6h,氮气保护下进行聚合反应,获得的聚ε-己内酯数均分子量Mn为24. 653×103g·mol-1,分子量分布为1. 21。实验结果表明,该希夫碱锌金属配合物[LZn]能够实现ε-己内酯开环聚合,聚合效果较好,产物分子量分布较窄。Ring-opening polymerization ofε-caprolactone catalyzed by Zn(II)Schiff-base complex[LZn]was studied.Using the selected[LZn]as the catalyst and 4-dimethylaminopyridine as the co-catalyst from the polymerization temperature of 80℃and the reaction time of 6 h in the solvent of toluene,the ring-opening polymerization ofε-caprolactone was carried out under nitrogen atmosphere,where the Mn of the PCL was 24.653×10 3g·mol-1 and the PDI was 1.21.The results showed that the effective ring-opening polymerization ofε-caprolactone was realized with the presence of catalyst[LZn].

关 键 词：希夫碱锌金属配合物 催化 Ε-己内酯 开环聚合 

分 类 号：O631.5[理学—高分子化学]