POLYLACTIC ACID COPOLYMER HAVING SIGNIFICANTLY IMPROVED ELASTICITY, AND PREPARATION METHOD THEREFOR

摘要

The present invention relates to a polylactic acid copolymer having significantly improved elasticity, and a preparation method therefor. More specifically, the present invention relates to a polylactic acid copolymer having significantly improved elasticity compared to a polylactic acid homopolymer, and a preparation method therefor, the polylactic acid copolymer comprising: a monocyclic compound having, as a repeating unit, (A) a lactic acid and (B) two or more hydroxy-terminated poly (aliphatic ether) chains; a polycyclic compound; or a fused cyclic compound.