A facile preparation of polystyrene-block-poly(lactide-co-glycolide) PS-b-PLGA block copolymers was reported in detail. Well-defined were successfully obtained via living anionic polymerization and ring-opening polymerization. First, hydroxyl-terminated linear polystyrenes prepared by The resulting polymers used as macroinitiators for copolymerization lactide glycolide the presence 1,8-diazabic...