Abstract
Polyaniline@Ni0.5Zn0.5Fe2O4 (PANI@NiZn) composite nanofibers were prepared by in situ polymerization of aniline in the presence of NiZn ferrite nanoparticles. The composites were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), thermogravimetric analysis (TGA), UV–vis and FTIR spectra. Their magnetic and dielectric properties were found that the PANI@NiZn nanocomposite nanofibers possess adjusted magnetic properties by change NiZn content. The PANI@NiZn composite nanofibers also have high dielectric constant and exhibit two dielectric relax regions at room temperature. The high-frequency dielectric relaxtion at about 3.5MHz may be contribute to the interfacial polarization occuring at the interface of NiZn nanoparticle and PANI polymer. This will reach a better understanding of the mechanism in polymer/inorganic nanocomposites.
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