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Double‐miniemulsion preparation of Fe 3 O 4 /poly(methyl methacrylate) magnetic latex
Author(s) -
Hong R. Y.,
Feng B.,
Cai X.,
Liu G.,
Li H. Z.,
Ding J.,
Zheng Y.,
Wei D. G.
Publication year - 2008
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.29403
Subject(s) - miniemulsion , materials science , methyl methacrylate , emulsion polymerization , ferrofluid , polymerization , polymer chemistry , magnetite , coprecipitation , monomer , chemical engineering , poly(methyl methacrylate) , polymer , thermogravimetry , fourier transform infrared spectroscopy , magnetic nanoparticles , scanning electron microscope , nanoparticle , composite material , nanotechnology , physics , quantum mechanics , magnetic field , engineering , metallurgy
Abstract 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. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2009