Controlled radical polymerization with polyolefin macroinitiator: a convenient and versatile approach to polyolefin-based block and graft copolymers

Abstract

---------(Abstract)This paper introduces the new synthetic methodology of polyolefin-based block and graft copolymers with polar segments (e.g., polystyrene and poly(meth)acrylates). Various brominated polyolefins were prepared by bromination of polyolefins with N-bromosccinimide. The resulting brominated polyolefins were able to initiate the controlled radical polymerization of polar monomers, such as methyl methacrylate, ethyl acrylate, t-butyl acrylate, styrene and 2-(dimethylamino)ethyl acrylate, by using a CuBr / N, N, N', N'', N''-pentamethyldiethylenetriamine catalyst system, leading to a variety of polyolefin-based copolymers with a different content of the corresponding polar segment. Because of the accessible synthesis of polyolefin macroinitiators, this synthetic methodology is expected to result in the preparation of a wide range of polyolefin-based block and graft copolymers.

Polyolefin–Polar Block Copolymers from Versatile New Macromonomers

“…Various multi-step polymerization strategies have been developed. ,− Catalytic olefin polymerization has been used to produce macroinitiators for ATRP, , NMP, , ROP, , RAFT, , cationic, and anionic − methods. ATRP , and RAFT systems have also been prepared via ROMP methods.…”

Preparation of polystyrene–polyolefin multiblock copolymers by sequential coordination and anionic polymerization

“…Preparation of PO-based block copolymers is currently highly topical. [33][34][35][36][37][38][39][40][41][42][43]…”