| 초록 |
Polymer nanocomposites containing noble-metal nanoparticles are very interesting because they can exhibit novel physical and chemical properties that are of high scientific and technological significance. In this study, we prepared acrylic/gold nanocomposite by UV irradiation of biobased acrylates (mixture of acrylated epoxidized soybean oil and tetrahydrofurfuryl acrylate) loaded with small amount of gold precursor, HAuCl4. It was observed that uniform dispersion of gold nanoparticle with average diameters ranging from 10 to 30 nm were obtained by in-situ photo-induced reduction of Au3+ to Auo in the crosslinked acrylate, which was confirmed by UV-vis spectroscopy, XRD and TEM. The biobased acrylic-gold nanocomposite films exhibit high antibacterial activity against Staphylococcus aureus. Morphology and properties of the cured nanocomposites along with cure behavior of acrylates/gold precursor mixture as a function of gold contents were examined. |
