含非对称N_2O_2配体异丙氧基铝配合物催化丙交酯开环聚合研究  

Ring-opening polymerization of rac-lactide initiated by a new aluminum isopropoxide complex supported by unsymmetric N_2O_2 ligand

作　　者：曹清彬 胡明刚[1] 王富贵[1] 邓启刚[1] 闫海龙 马文辉[1] 宋伟明[1] 董国华[1] 

机构地区：[1]齐齐哈尔大学化学与化学工程学院,黑龙江齐齐哈尔161006 [2]齐齐哈尔市环境监测站,黑龙江齐齐哈尔161005

出　　处：《高师理科学刊》2015年第10期48-50,共3页Journal of Science of Teachers＇College and University

基　　金：黑龙江省青年科学基金项目(QC2011C057);黑龙江省教育厅面上项目(12521596);齐齐哈尔市科技局资助项目(GYGG-201314)

摘　　要：以含非对称N2O2配体异丙氧基铝配合物1催化外消旋丙交酯(rac-LA)开环聚合,研究了单体与催化剂的摩尔比、反应时间和反应温度对聚合反应的影响.结果表明,该配合物对丙交酯开环聚合有较好的催化活性,可制得分子量分布为中等程度的聚丙交酯(Mw/Mn=1.26-1.45).Analuminumisopropoxide complex1containing an unsymmetric N2O2 ligand was used for ring-opening polymerization of rac-lactide.The influences of the molar ratio of monomer to catalyst,polymerization temperature and time on polymer were studied.The results showed that,the complex is active,and polylactidewith moderate polydispersity was produced（Mw/Mn=1.26-1.45）.

关 键 词：非对称N2O2配体 外消旋丙交酯 异丙氧基铝配合物 开环聚合 

分 类 号：TQ316.3[化学工程—高聚物工业]