Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/26458
Title: Characterization of Fe3O4/P (St-MPEO) amphiphilic magnetic polymer microspheres
Authors: Liu, XY
Ding, XB
Zheng, ZH
Zhang, WC
Peng, YX
Chan, ASC
Yip, CW
Long, XP
Keywords: Amphiphilic magnetic polymer
Microsphere
Copolymerization
Issue Date: 2002
Publisher: Higher Education Press
Source: Chemical research in Chinese universities, 2002, v. 18, no. 4, p. 458-461 How to cite?
Journal: Chemical Research in Chinese Universities 
Abstract: Amphiphilic magnetic microspheres consisting of styrene and poly (ethylene oxide) macromonomer (MPEO) were prepared by dispersion copolymerization in the presence of Fe3O4 magnetic fluid in an ethanol/. water medium. The sizes of the magnetic microspheres and their distribution were characterized by means of scanning electron microscopy(SEM). The surface,morphology and,the average surface roughness oft the microspheres were investigated by virtue of atomic force microscopy (AFM). It was found,that the microspheres exhibit microscopic phase-separate and the mean square surface roughness of the microspheres increases with . increasing MPEO used in the copolymerization. The amphiphilic magnetic microspheres containing 0.4-3.5 mg/g hydroxyl groups could be prepared from MPEO with different concentrations and styrene.
URI: http://hdl.handle.net/10397/26458
ISSN: 1005-9040
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