Fig. 4: Block polymer preparation.
From: Metal-free atom transfer radical polymerization with ppm catalyst loading under sunlight
a Chain-extension from a PMMA macro-initiator (black) to produce block copolymers after a further polymerization with MMA (green), BnMA (red), and BA (blue). b GPC traces of the corresponding polymers depicted in left by using the same color coded. BnMA benzyl methacrylate, BA butyl acrylate.
