Stereospecific Living Polymerization of Methacrylate with Binary Initiator Systems

摘要: Three kinds of stereospecific polymerizations methacrylate are described; isotactic-specific, syndiotactic-specific, and heterotactic-specific ones, all which utilize binary initiator systems comprising bulky anionic Lewis acid; the latter works as stereo specificity modifier. Particular emphasis is placed on unique synthetic utility aluminum phenoxides in polymerization; heterotactic polymerization primary secondary alkyl esters, syndiotactic tertiary monomer-selective copolymerization leading to formation block copolymer with high stereoregularity, regioselective a dimethacrylate, affording soluble, reactive polymer, having sterically protected phenol group by mechanism.