Method for production of core-shell microparticle, and method for production of monodisperse crosslinked microparticle having alkoxyamine group for use as intermediate for the production of the core-shell microparticle

摘要

Disclosed is a core-shell microparticle (10) which is produced by heating a mixture of a crosslinked microparticle (11) having an alkoxyamine group (12) and a monomer to 100 to 180° C. to cause graft polymerization. The crosslinked microparticle (11) is produced by allowing a seed particle to absorb a monomer mixture comprising 15 to 99% by mass of a crosslinkable monomer and 1 to 85% by weight of a monomer having an alkoxyamine group, and then adding a polymerization initiator to the resulting product to cause the polymerization of the monomer mixture.