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http://dx.doi.org/10.7473/EC.2012.47.2.168

Synthesis of Magnetic Polystyrene-Polyimide Core-Shell Microsphere  

Ahn, Byung-Hyun (Department of Material Engineering, Pukyong National University)
Publication Information
Elastomers and Composites / v.47, no.2, 2012 , pp. 168-173 More about this Journal
Abstract
Polystyrene-polyimide core-shell microsphere was prepared by dispersion polymerization using poly(amic acid) as the stabilizer. Iron oxide was formed at the microsphere by thermal decomposition of iron pentacarbonyl impregnated in the microsphere. The magnetic polystyrene-polyimide microsphere was monodisperse and the size was about 500 nm. The magnetic polystyrene-polyimide microsphere had 40% of iron oxide, which was identified as $Fe_3O_4$ by X-ray diffraction.
Keywords
polystyrene-polyimide core-shell; dispersion polymerization; iron pentacarbonyl; iron nano particle; superparamagnetism;
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