Abstract
Polyaniline– Ni0.5Zn0.5Fe2O4 nanocomposites were prepared via in-situ polymerization of aniline using Ni0.5Zn0.5Fe2O4 nanoparticles varying their percentage in aniline from 0% to 100% (w/w). These nanocomposites have been characterized by XRD, FTIR, high-resolution TEM, room temperature VSM and TGA. TEM images suggests that the nanoparticles are rooted in the polyaniline matrix and chain like structure of the composites for higher polyaniline concentration. It is revealed that magnetic and thermal properties of these nanocomposites increases with increase in nanoparticles content. The synergetic effect of super paramagnetic nickel zinc ferrite can make polyaniline nanocomposites magneto-responsive The effect of loading of nanoparticles on AC conductivity and impedance in the frequency range of 100 Hz to 100 MHz and DC conductivity were thoroughly studied. The conductivity of nanocomposites was found to be improved than pure polyaniline up to 10% loading. The investigations revealed that magnetic and electronic properties of nanocomposites can be tailored by Ni0.5Zn0.5Fe2O4 content.
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