Ring-opening Polymerization of ε-Caprolactone by Lanthanide Tris(2,6-dimethylphenolate)s  

作　　者：张丽芳 沈之荃 于翠萍 

机构地区：[1]Institute of Polymer Science, Zhejiang University, Hangzhou, Zhejiang 310027, China,Department of Chemistry, Shanxi Normal University, Linfen, Shanxi 041004, China [2]Institute of Polymer Science, Zhejiang University, Hangzhou, Zhejiang 310027, China

出　　处：《Chinese Journal of Chemistry》2003年第9期1236-1237,共2页中国化学（英文版）

基　　金：theNationalNaturalScienceFoundationofChina (Nos .2 0 1740 33and 2 0 2 5 40 0 1) ,theMajorStateBasicResearchDevelopmentProgram (No .G19990 6 480 1)andtheCommitteeofScienceandTechnologyofZhejiangProvince

摘　　要：Lanthanide tris(2,6-dimethylphenolate)s [Ln(ODMP) 3] were used as initiators for ring-opening polymerization of ε-caprolactone (CL) for the first time. The influence of different rare earth elements and solvents was investigated. 1H NMR spectral data of polycaprolactone (PCL) obtained showed that the polymerization mechanism is in agreement with the coordination-insertion mechanism and the selective cleavage of the acyl-oxygen bond of CL.Lanthanide tris(2,6-dimethylphenolate)s [Ln(ODMP) 3] were used as initiators for ring-opening polymerization of ε-caprolactone (CL) for the first time. The influence of different rare earth elements and solvents was investigated. 1H NMR spectral data of polycaprolactone (PCL) obtained showed that the polymerization mechanism is in agreement with the coordination-insertion mechanism and the selective cleavage of the acyl-oxygen bond of CL.

关 键 词：ring-opening polymerization Ε-CAPROLACTONE lanthanide tris(2 6-dimethylphenolate) 

分 类 号：O631.5[理学—高分子化学]