STYRENIC POLYMER PARTICLE, METHOD FOR PRODUCING THE SAME, FOAMABLE STYRENIC POLYMER PARTICLE AND FOAM-MOLDED PRODUCT

摘要

PROBLEM TO BE SOLVED: To provide a method for producing styrenic polymer particles, by which the formation of fine powder can be suppressed.;SOLUTION: The method for producing the styrenic polymer particles includes adding a biphenyl-based compound represented by general formula (1) (wherein, A and B are the same or different, and each a group selected from hydroxy and lower alkyl; X is lower alkylene which may have a substituent, -S- or a single bond; and n is 1-4) to an aqueous medium when subjecting a styrenic monomer to seed polymerization in the aqueous medium in which the seed particles are present by using a polymerization initiator to provide the styrenic polymer particles while suppressing the formation of the fine powder comprising the polymer originated from the styrenic monomer not adsorbed on the seed particles.;COPYRIGHT: (C)2011,JPO&INPIT