Fig. 6: Controlled synthesis of the designed polymers using the PET-RAFT polymerization.

a Synthetic route of macromolecular PAN-CTA and PAN-b-PPEGMA. b Proposed mechanism of ZnTPP-catalyzed PET-RAFT polymerization. c Chemical structure of ZnTPP photocatalyst. d Kinetics of PET-RAFT polymerization of AN under blue LED irradiation (2 mW cm−2) (black circles) and variation of dispersity (Đ) with time (red circles). e GPC profiles of synthesized PAN. f GPC profiles of PAN and PAN-b-PPEGMA by chain extension.