论文摘要
Two β-diiminate zinc complexes were prepared and found to show high activity and well-controlled catalytic behavior in the ring-opening polymerization of rac-lactide. Coordination of the Lewis acid to the zinc complexes completely terminated the polymerization. The coordinated Lewis acid was easily cleaved by using a Lewis base, so that the polymerization could resume.Thus, switchable polymerization could be realized by the subsequent addition of a Lewis acid and a Lewis base. This work provides a new strategy to control the ring-opening polymerization of rac-lactide.
论文目录
文章来源
类型: 期刊论文
作者: Pan Zhang,Minhui Zhao,Wenmin Pang,Changle Chen
来源: Science China(Chemistry) 2019年04期
年度: 2019
分类: 工程科技Ⅰ辑
专业: 化学
单位: Hefei National Laboratory for Physical Sciences at the Microscale, Chinese Academy of Sciences Key Laboratory of Soft Matter Chemistry,Department of Polymer Science and Engineering, University of Science and Technology of China
基金: supported by the National Natural Science Foundation of China (21871242,21690071),the Fundamental Research Funds for the Central Universities
分类号: O631.5
页码: 475-478
总页数: 4
文件大小: 364K
下载量: 14