The present application provides salen indium catalysts of the following general structure (Formula (I)), and the corresponding dimers. The salen indium catalysts are particularly useful in catalyzing ring-opening polymerizations of cyclic ester monomers, such as lactides. Also provided herein are methods of using the salen indium complexes to catalyze polymerization of cyclic ester monomers. Of particular interest is the successful polymerization of lactides using the present salen indium catalysts to produce poly(lactic acid) having high isotacticity.
本申请提供以下一般结构(公式(I))的萨林
铟催化剂及其相应的二聚体。萨林
铟催化剂在催化环酯单体的开环聚合中特别有用,例如
乳酸内酯。本文还提供使用萨林
铟配合物催化环酯单体聚合的方法。尤其值得关注的是,使用本申请的萨林
铟催化剂成功聚合
乳酸内酯,产生具有高同形异构度的聚
乳酸。