Biodegradable aliphatic polyester grafted with poly(ethylene glycol) having reactive groups and preparation method thereof관능기를 가진 폴리에틸렌글리콜이 구조내에 그라프트된생분해성 지방족 폴리에스테르 및 그 제조방법
The present invention is directed to a poly(ethylene glycol)-grafted aliphatic polyester represented by Formula 1: wherein X is an aliphatic ester, R is hydrogen or C1-5 alkyl, Z is the binding moiety of an initiator or a chain transfer agent, m/l is from 0.1 to 50, n is from 2 to 50, w is 1 or greater, and y is from 1 to 200. Further disclosed is a method for preparing the poly(ethylene glycol)-grafted aliphatic polyester of the present invention.
wherein X is an aliphatic ester, R is hydrogen or C1-5 alkyl, Z is the binding moiety of an initiator or a chain transfer agent, m/l is from 0.1 to 50, n is from 2 to 50, w is 1 or greater, and y is from 1 to 200.
Further disclosed is a method for preparing the poly(ethylene glycol)-grafted aliphatic polyester of the present invention.