Production of micron‐sized monodispersed cross‐linked polymer particles having hollow structure

摘要

Abstract4 μm‐sized monodispersed cross‐linked polymer particles having hollow structure were produced as follows. First, 1.7 μm‐sized monodispersed polystyrene (PS) seed particles produced by dispersion polymerization were dispersed in ethanol/water (7/3, w/w) solution in which divinylbenzene (DVB), benzoyl peroxide (BPO), poly(vinyl alcohol), and toluene was dissolved. The PS seed particles were swollen with DVB, toluene and BPO maintaining high monodispersity throughout the dynamic swelling process where water was slowly added continuously. And then, the seeded polymerization of the (toluene/DVB)‐swollen PS particles was ca