Preparation and Characterization of Inorganic-Polymeric Magnetic Composite Nanospheres

The effect of amount of emulsifier on the seeded emulsion polymerization was given in detail. Copolymer nanospheres of styrene/acrylic acid were prepared. In addition, the preparation of copolymer core magnetite shell composite particles were reported. These composite particles were characterized by XRD and TEM. In this paper, a suspension with these composite particles dispersed was also prepared. Its suspension properties and viscosity variation with the applied magnetic field were further studied.