| abstract |
(57) [Problem] An object of the present invention is to provide various block copolymers that can be easily produced without requiring difficult optimization of polymerization conditions and the like. A block copolymer produced by adding a polymer (I) having an alkenyl group to a living radical polymerization system or a living cationic polymerization system. As the living radical polymerization, atom transfer radical polymerization is preferable. When the polymer (I) having an initiator group for each living polymerization is used, a multi-block copolymer can be easily obtained. |