Details

Autor(en) / Beteiligte

• LIU Xue-yong DING Xiao-bin ZHENG Zhao-hui ZHANG Wen-chan PENG Yu-xing CHAN ALBERT S. C. YIP C. W. LONG Xin-ping

Titel

Characterization of Fe3O4/P(St-MPEO) Amphiphilic Magnetic Polymer Microspheres

Ist Teil von

• Chemical research in Chinese universities, 2002-11, Vol.18 (4), p.458-461

Ort / Verlag

Institute of Chemical Materials, Chinese Academy of Engineering Physics,Mianyang 621900, P. R. China%Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences,Chengdu 610041, P. R. China%Open Laboratory of Chirotechnology and Department of Applied Biology and Chemical Technology,Hong Kong Polytechnic University, Hong Kong, P. R. China%Institute of Chemical Materials, Chinese Academy of Engineering Physics,Mianyang 621900, P. R. China

Erscheinungsjahr

2002

Link zum Volltext

Beschreibungen/Notizen

• 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 of 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.