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.