A magnetic metal/polymer nanocomposite material based on poly(diphenylamine) and Fe3O4 nanoparticles

It was discovered that IR heating of poly(diphenylamine) in the presence of FeCl(3)aEuro cent 6H(2)O in an inert atmosphere at 300-700 A degrees C produces a metal polymer nanocomposite with Fe3O4 nanoparticles dispersed in polymer matrix. This is achieved by condensation of crystalline diphenylamine oligomers with evolution of hydrogen that promotes iron reduction. The formation of Fe3O4 nanoparticles was confirmed by X-ray powder diffraction. The magnetic and thermal properties of the Fe3O4-poly(diphenylamine) nanocomposite were examined. This nanocomposite material shows superparamagnetism and thermal stability.