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: Institute of Polymer Science, Zhejiang University, Hangzhou, Zhejiang 310027, China,Department of Ch
• 出 处: Chinese Journal of Chemistry
• 发表日期: 2003年09期
• 关键词: Conversion

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) was showed that the polymerization mechanism is in agreement with the coordination-insertion mechanism and the selective cleavage of the acyl-oxygen bond of CL.