Abstract
Magnetic polymer particles with high and uniform magnetic content, modified with β-cyclodextrin (β-CD) were prepared. The resulting magnetic polymer particles were characterized by Fourier transform infrared spectroscopy (FTIR), powder X-ray diffractometer (XRD), thermal gravimeter analysis (TGA), scanning electron microscopy (SEM), Transmission electron microscope (TEM), and vibrating sample magnetometer (VSM) measurements. FTIR and XRD confirmed the presence of iron oxide (maghemite) and β-CD in the final magnetic polymer particles. TGA measurements indicated that the final magnetic polymer particles have more than 65 % iron oxide content and high thermal stability. SEM and TEM revealed that all maghemite particles were embedded in the polymer phase. According to magnetometry data, shape of the hysteresis loops evidence the ferromagnetic character of the material and no evidence of superparamagnetism was seen.
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