Double-Miniemulsion Preparation of Fe3O4/Poly(methyl methacrylate) Magnetic Latex

被引:44
作者
Hong, R. Y. [1 ,2 ,3 ]
Feng, B. [1 ,2 ]
Cai, X. [1 ,2 ]
Liu, G. [1 ,2 ]
Li, H. Z. [3 ]
Ding, J. [4 ]
Zheng, Y. [5 ]
Wei, D. G. [6 ]
机构
[1] Soochow Univ, Coll Chem Engn & Mat Sci, Suzhou 215123, Peoples R China
[2] Soochow Univ, Key Lab Organ Synth Jiangsu Prov, Suzhou 215123, Peoples R China
[3] Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase React, Beijing 100080, Peoples R China
[4] IBM Corp, Rochester, MN 55901 USA
[5] Univ New Brunswick, Dept Chem Engn, Fredericton, NB E3B 5A3, Canada
[6] Harvard Univ, Sch Engn & Appl Sci, Ctr Nanoscale Syst, Cambridge, MA 02139 USA
基金
中国国家自然科学基金;
关键词
magnetic; polymer microsphere; miniemulsion polymerization; NANOPARTICLES; MICROSPHERES; PARTICLES; POLYMERIZATION; STYRENE; ENCAPSULATION; NANOSPHERES; ADSORPTION; EMULSION;
D O I
10.1002/app.29403
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Magnetic poly(methyl methacrylate) (PMMA) microspheres were prepared by double-miniemulsion polymerization. First, oleic acid coated magnetite particles synthesized by means of coprecipitation were dispersed into octane to obtain a ferrofluid. The ferrofluid and MMA were emulsified to form O/W emulsion, respectively. Subsequently two miniemulsions were mixed together for polymerization. The obtained magnetic polymer particles were characterized by, Fourier transform infrared spectroscopy, transmission electron microscopy, scanning electron microscopy, X-ray powder diffraction, and thermogravimetry. The results showed that oleic acid coated magnetite particles were well encapsulated in PMMA. The effects of initiator dosage and monomer concentration on the conversion of MMA were also investigated. (C) 2008 Wiley Periodicals, Inc. J Appl Polym Sci 112:89-98, 2009
引用
收藏
页码:89 / 98
页数:10
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