(618y) Preparation and Characterization of Conductive Polyaniline-Magnetite Nanocomposites

In order to obtain conductive and magnetic polymer nanocomposites (PNCs) (1-4), polyaniline (PANI) nanocomposites reinforced with magnetite (Fe₃O₄) nanoparticles (NPs) have been fabricated using surface-initiated-polymerization (SIP) method. The PANI/Fe₃O₄ nanocomposites are characterized by Fourier transform infrared spectroscopy (FTIR). The thermal properties of PANI/ Fe₃O₄ nanocomposites are characterized by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). Both Transmission electron microscopy (TEM) and Scanning electron microscope (SEM) are used to characterize the dispersion of Fe₃O₄ NPs and the morphology of PANI/ Fe₃O₄ nanocomposites. The effect of the Fe₃O₄ NPs on the crystallization behavior of the PANI during polymerization is studied. The electrical conductivity, dielectrical and magnetic properties of these nanocomposites are investigated and will be reported.