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Production of micron‐sized monodispersed cross‐linked polymer particles having hollow structure
Author(s) -
Okubo Masayoshi,
Minami Hideto,
Yamashita Tsuyoshi
Publication year - 1996
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.19961010157
Subject(s) - divinylbenzene , toluene , materials science , chemical engineering , benzoyl peroxide , polymer , polymerization , dispersion polymerization , polystyrene , polymer chemistry , vinyl alcohol , styrene , dispersion (optics) , composite material , chemistry , organic chemistry , copolymer , physics , optics , engineering
4 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 carried out.