Synthesis of PCL-PS Star-Block Copolymer by Combination of Lipase-Catalyzed Ring-Opening Polymerization and ATRP

2006 ◽  
Vol 11-12 ◽  
pp. 749-752 ◽  
Author(s):  
Rui Xue Liu ◽  
Yan Shi ◽  
Zhi Feng Fu

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.

2017 ◽  
Vol 8 (19) ◽  
pp. 2899-2903 ◽  
Author(s):  
Cansu Aydogan ◽  
Ceren Kutahya ◽  
Andrit Allushi ◽  
Gorkem Yilmaz ◽  
Yusuf Yagci

A completely metal-free strategy was developed by combining Atom Transfer Radical Polymerization (ATRP) and Ring Opening Polymerization (ROP) for the syntheses of block copolymers.


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