Organic antimony compound, process for producing the same, living radical polymerization initiator, process for producing polymer using the same, and polymer

摘要

An organoantimony compound represented by the formula (1), processes for producing polymers with use of the compound, and polymers wherein R1 and R2 are C1-C8 alkyl, aryl, substituted aryl or an aromatic heterocyclic group, R3 and R4 are each a hydrogen atom or C1-C8 alkyl, and R5 is aryl, substituted aryl, an aromatic heterocyclic group, oxycarbonyl or cyano.