Synthesis and Characters of Fe3O4/AMPS Magnetic Composite Material

The synthesis of Fe3O4/AMPS magnetic composite material by solution polymerization method is introduced in this study. Results of structure, morphology and magnetic properties show that the solution polymerization technology is an effective method for synthesizing core-shell structure oxide/polymer magnetic composite material. The Fe3O4 prepared by chemical precipitation process is uniform nanoparticle and the size is about 10 nm. The synthesized Fe3O4/AMPS is large irregular nanoparticles, and the average diameter is about 30 nm. The FT-IR analysis suggests that electrostatic adsorption of c=(up arrow M)c probably contribute to the formation of core-shell Fe3O4/AMPS magnetic composite. The product Fe3O4/AMPS performs a typical superparamagnetic property with an absence of hysteresis in the M H loop, implying a broad prospects of its potential application as target material.