Stereochemical Control of Free-Radical Polymerization of Vinyl Monomers

摘要

This chapter describes stereoregulation methods for free-radical polymerization based on (I) rationally designed monomers, (II) chiral initiators and chain-transfer agents, (III) reaction conditiosn (monomer concentration, temepratur,e solvent), and (IV) template molecules. Method I includes polymerization of bulky methacrylates giving highly isotactic polymers. Method II involves menthol-based peroxides and thiols that can control helicity in 1-phenyldibenzosuberyl methacrylate polymerization. Method III was effective for triphenylethacrylate polymerization where isotacticity content of resulting polymer was controllable in the range >99-64