Synthesis, Characterization and Biological Activity of Iron (III) Oxide and Titanium (Ⅳ) Oxide Nanoparticle Dispersed Polyester Resin Nanocomposites

摘要

In this work, dispersed nanoparticles of Fe_2O_3-and TiO_2-reinforced linear saturated polyester resin nanocomposites werefabricated. Nanosized oxides of iron (Ⅲ) and titanium (Ⅳ) and polyester resin were prepared throughout sol–gel depositionand polycondensation reactions, respectively. The incorporation of nanostructured metal oxides with polyester matrix wascharacterized. Molecular weight, structure, composition, morphology and electric property of composites were investigatedby gel permeation chromatography, Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy,transmission electron microscopy and conductivity measurements. The obtained nanocomposites exhibit low crystallinity,high agglomeration and high conductivity due to the ionic cross-linking. Moreover, the biological activity of the fabricatednanocomposites was studied against selected strains of pathogenic bacteria and fungi. The biological effect of polyesternanocomposites has higher value than the free one. These nanocomposites will find potential sites in catalysis.