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Synthesis of Monodispersed Magnetic Polymer Particle  

Ahn, Byung Hyun (Division of Material Engineering, Pukyong National University)
Publication Information
Applied Chemistry for Engineering / v.19, no.3, 2008 , pp. 316-321 More about this Journal
Abstract
Monodispersed particles of poly(styrene-co-4-vinylpyridine), poly(st-co-4vp) were prepared by soapless emulsion polymerization. Iron oxide was formed on the surface and inside of the poly(st-co-4vp) particles by thermal decompostion of iron pentacarbonyl. The obtained magnetic poly(st-co-4vp) particles was mondispersed and the average size was 250 nm. The magnetic poly(st-co-4vp) particles had 14% of iron oxide, which was identified as $Fe_3O_4$ by XRD. The magnetic poly(st-co-4vp) particles had superparamagnetism according to superconducting susceptometer (SQUID).
Keywords
magnetic polymer particle; soapless emulsion polymerization; iron pentacarbonyl; superparamagnetism;
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