Schiff base aluminum catalysts containing morpholinomethyl groups in the ring opening polymerization of rac-lactide  

作　　者：Zhijie Guo Ranlong Duan Mingxiao Deng Xuan Pang Chenyang Hu Xuesi Chen 

机构地区：[1]Department of Chemistry, Northeast Normal University [2]Key Laboratory of Polymer Ecomaterials, Chinese Academy of Sciences [3]Changchun Institute of Applied Chemistry,Chinese Academy of Sciences

出　　处：《Science China Chemistry》2015年第11期1741-1747,共7页中国科学（化学英文版）

基　　金：supported by the National Natural Science Foundation of China(51173183,51233004,51390484,51321062,51473029)

摘　　要：A series of Schiff base aluminum(III) complexes bearing morpholinomethyl substituents were synthesized. Comprehensive investigations on their stereoselective and kinetic features in the ring opening polymerization of lactide were carried out. The ring opening polymerization proved to be first-order in the catalyst and the monomer. Linear relationships between the numberaverage molecular weight of the polylactide and the monomer conversion were consistent with a well-controlled polymerization. The propagation rate was strongly affected by morpholinomethyl substituents on the salicylaldehyde moiety.A series of Schiff base aluminum（III） complexes bearing morpholinomethyl substituents were synthesized. Comprehensive investigations on their stereoselective and kinetic features in the ring opening polymerization of lactide were carried out. The ring opening polymerization proved to be first-order in the catalyst and the monomer. Linear relationships between the numberaverage molecular weight of the polylactide and the monomer conversion were consistent with a well-controlled polymerization. The propagation rate was strongly affected by morpholinomethyl substituents on the salicylaldehyde moiety.

关 键 词：POLYLACTIDE morpholinomethyl ring opening polymerization 

分 类 号：O643.36[理学—物理化学] O631.5[理学—化学]