Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 129, Issue 29, Pages 8974-+Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja0736461
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We report a unified set of emulsion polymerization processes for the synthesis of a series of spherical and nonspherical magnetite-polystyrene (Fe3O4-PS) composite colloids with the superparamagnetic cores concentrically or eccentrically positioned inside polystyrene shells. The interfacial tension between the inorganic core and monomer-swollen polymer shell and the effect of swelling and phase separation have been employed to tune the morphology and structure of the composite colloids. The uniform size, anisotropic structure/shape, and the additional magnetic control make these colloidal particles ideal building blocks for the fabrication of novel functional devices and materials.
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