JaLCDOI 10.18926/fest/11597
Title Alternative Preparation of Monodispersed Hydrophilic Polymer Microspheres in Gel Permeation Chromatography
FullText URL 005_159_163.pdf
Author Yoshizawa, Hidekazu| Ikeda, Satoshi| Kitamura, Yoshiro| Hasegawa, Masadumi| Moriyama, Hiroyuki| Kawano, Yoshinobu| Hatate, Yasuo|
Abstract Monodispersed porous polymer microspheres having diameter of ca. 50 μm were successfully prepared by suspension polymerization of styrene, polyoxyethylene methacrylate and ethylenegycol dimethacrylate. Monodispersed O/W emulsion was firstly made by SPG membrane emulsification technique, following droplets-swelling method of monodispersed seed emulsion by the addition of secondary emulsion. The effect of solvent used in suspension polymerization on porous structure of prepared polymer microspheres was investigated in this paper by identification with scanning electron microscopy, porosimeter and the performance in gel permeation chromatography. It was found that benzene, 1-butanol and butyl acetate worked as poor solvent for polymer prepared in this study and that polymer microspheres prepared with these solvents had larger pores. Gel permeation chromatography measurements indicates that polystyrene having molecular weight smaller than 50,000-100,000 can be clearly separated by using gel columns packed with polymer microspheres prepared with poor solvents.
Keywords polymer microsphere monodispersed emulsion swelling method hydrophilic polymer gel permeation chromatography size-exclusive separation
Publication Title 岡山大学環境理工学部研究報告
Published Date 2000-02-29
Volume volume5
Issue issue1
Start Page 159
End Page 164
ISSN 1341-9099
language 日本語
File Version publisher
NAID 120002313521