CRYSTALLINE POLY(LACTIC ACID) AND PROCESS FOR PRODUCTION THEREOF

摘要

This application relates to a melt polymerization process for ring-opening polymerization of cyclic monomers. The process is useful for production of crystalline poly(lactic acid). More specifically, the application provides a poly(lactic acid) having a crystallinity of ≥80% and a Tm≥170˚C, and a process for production thereof. The process comprises a ring-opening, melt polymerization of cyclic monomers, such as lactides, in the presence of an salen indium catalyst.