Synthesis of PCL-PS Star-Block Copolymer by Combination of Lipase-Catalyzed Ring-Opening Polymerization and ATRP
Poly(ε-caprolactone) (PCL)-polystyrene (PS)star-block copolymer with a cross-linked microgel core were synthesized by the combination of atom transfer radical polymerization (ATRP) of St and lipase-catalyzed ring-opening polymerization (ROP) of ε-CL. The characterization of PCL-Br, PCL-PS-Br macroinitiator and PCL-PS Star-block copolymers was detected by GPC and 1H NMR. Results showed that the target star-block copolymers were successfully prepared.
Masayuki Nogami, Riguang Jin, Toshihiro Kasuga and Wantai Yang
R. X. Liu et al., "Synthesis of PCL-PS Star-Block Copolymer by Combination of Lipase-Catalyzed Ring-Opening Polymerization and ATRP", Advanced Materials Research, Vols. 11-12, pp. 749-752, 2006