METHOD OF ENZYMATIC DEPOLYMERIZATION OF POLYLACTIC ACID AND PROCESS FOR PRODUCING POLYLACTIC ACID FROM DEPOLYMERIZATION PRODUCT

摘要

A method of polylactic acid depolymerization which comprises depolymerizing polylactic acid in an organic solvent or supercritical fluid in the presence of a hydrolase to yield a repolymerizable oligomer; and a process for producing polylactic acid in which the repolymerizable oligomer obtained by the depolymerization method is polymerized in the presence of a hydrolase or polymerization catalyst.