Preparation, Characterisation and Conductivity studies of Supramolecular polymer/Ferrite Nanocomposites

Polymer-ferrite nanocomposites have attracted an extensive attention for their wide applications as electromagnetic interference shielding, rechargeable battery, electrodes, sensors and microwave absorption. In this investigation, we report on the preparation and characterisation of ferrite nanoparticles and their supramolecular polymer nanocomposites. The prepared nanocomposites were characterised by FTIR spectroscopy, X-ray diffraction (XRD), Scanning electron microscopy (SEM) and Thermal analysis (TG-DSC). Also, the effect of temperature and frequency variation on dielectric constant (ɛ’), dielectric dissipation factor (tan δ) and AC conductivity (σac) were investigated. The results revealed that the ferrite nanoparticles were uniformly distributed throughout the supramolecular polymer matrix. The interaction between ferrite nanoparticles and supramolecular polymer matrix may be due to the formation of the hydrogen bonding between the amine group of supramolecular polymer and oxygen of metal ferrites (MFe2O4). The percentage of magnetization of the nanocomposite decreases as the concentration of the ferrite increases.