AC CONDUCTIVITY STUDY OF POLYANILINE / NiCuFe 2 O 3 COMPOSITES

ABSTRACT The PANI/ NiCuFe 2 O 3 composites have been synthesized by Insitu polymerization of aniline in the presence of NiCuFe 2 O 3 by chemical oxidation method with various compositions viz., 10, 30, and 50 Wt. % of NiCuFe 2 O 3 in PANI. The AC conductivity was studied in the frequency range 10 2 -10 7 Hz. The dimensions of NiCuFe 2 O 3 particles in the matrix have a greater influence on the conductivity values

Synthesis and characterization of polyvinyl alcoholcobalt oxide nanocomposite film

Dispersion of nanometeric metal oxides in the polymers improves the properties and applications of polymers. A simple solvent casting method for the synthesis of cobalt oxide dispersed polyvinyl alcohol (PVA) nanocomposites is reported. This synthetic route is simple and it needs less apparatus. X-ray diffraction (XRD) technique is used to know the structural arrangement nanocomposites. This study revels that, the increase in crystallinity of amorphous polyvinyl alcohol and decrease in crystallinity of inserted dispersed cobalt oxide. The morphological study is undertaken by scanning electron micrograph (SEM) tool. The morphological change is observed in PVA nanocomposites compared to pure PVA indicates the formation of PVA nanocomposites. Thermal behavior of PVA and its nanocomposites are studied by DSC method. Thermal trace shows increase in thermal stability of polyvinyl alcohol nanocomposites compared to pure PVA