Synthesis, thermal and magnetic behavior of iron oxide-polymer nanocomposites

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Polymer nanocomposites of various concentrations were prepared using iron oxide (Fe 2 O 3 ) nanoparticles as filler in an 80:20 ratio of the polyurethane diol and polycaprolactone hybrid. Fourier transformed infrared spectroscopy studies were performed to find out the interaction of the nanoparticles with the polymer blend. Fe 2 O 3 in the polymer composites was in the nanoscale and uniform dispersion was achieved, as revealed by X-ray diffraction. The thermal stability of the blend was assessed through thermogravimetry analysis and dynamic mechanical analysis. High-resolution scanning electron microscopy and transmission electron microscopy images ensured the development of the polymer hybrid around Fe 2 O 3 nanoparticles and the prepared composites were indeed in the nanoscale. The magnetic behavior of the prepared nanocomposites is superparamagnetic with high magnetization values, as assessed by vibrating sample magnetometry analysis.