Synthesis of Polyaniline- γ-Fe2O3 nano composites in Green Medium - Theoretical Justification of Electrical and Magnetic Properties

In this work polyaniline (PANI)-γ-Fe2O3 nano composites were synthesized via in-situ oxidative chemical polymerization technique in a green medium extracted from the fruit of plant Tamarindus indica. Various samples were prepared with 5, 10 and 15g of γ-Fe2O3 as filler in 0.4M aniline and were characterized by XRD, SEM and IR. Dielectric properties were determined in the frequency range of 100Hz to 20MHz and these values were compared with the theoretical values obtained from Maxwell-Wagner equation. Magnetic properties of the samples were analyzed by Vibrating Sample Magnetometer (VSM). A theoretical linear equation was applied to justify the saturation magnetization (Ms) values of the composites with different loading of γ-Fe2O3.