METHOD FOR PRODUCING POLYMER MICROPARTICLE IN THE SUPERCRITICAL CARBON DIOXIDE

摘要

PROBLEM TO BE SOLVED: To provide a method for easily producing stable polymer microparticles having wide distribution of particle size including sub-micron in the supercritical carbon dioxide. SOLUTION: This method for producing polymer microparticles comprises polymerizing a monomer unevenly by a radical polymerization initiator in the supercritical carbon dioxide, where the radical polymerization initiator is a polymer substantially soluble in the supercritical carbon dioxide having an oligomer skeleton and a radical polymerization initiator part.