POLY(ESTER URETHANE) SYNTHESIZED VIA CHAIN EXTENSION OF PLLA AND PBS PREPOLYMERS USING HDI
HDI作为扩链剂合成含PLLA和PBS链段的聚酯氨酯

An aliphatic polyester,poly(butylene succinate)(PBS),which can be derived from renewable materials,was used to copolymerize with poly(L-lactic acid)(LPLA)through chain-extension reaction for preparing a biodegradable poly(ester urethane)(PEU).Hexamethylene diisocyanate(HDI)was used as a chain-extender.PLLA and PBS,having number-average molecular weight of 6350 g/mol and 10500 g/mol,respectively,were synthesized through condensation polymerization and were terminated with hydroxyl groups,which endowed them w...