Preparation and characterization of electromagnetic functionalized polyaniline/BaFe12O19 composites

Electromagnetic functionalized polyaniline/BaFe12O19 composites were synthesized by in situ polymerization of aniline in the presence of BaFe12O19 particles. The structure and morphologies of products were characterized by X-ray diffraction, infrared spectra, scanning electron microscopy and transmission electron microscopy. In the electromagnetic measurements, it was found that the ac conductivity of BaFe12O19 particles enhanced while the saturation magnetization and coercivity decreased after polyaniline coating.