Scientific Results

Dependence of Optical and Microstructure Properties of Thiol-Capped Silver Nanoparticles Embedded in Polymeric Matrix

Year: 2011

Authors: Longo A., Carotenuto G., Palomba M., De Nicola S.

Autors Affiliation: Institute for Composite and Biomedical Materials, National Research Council (IMCB-CNR),
P.le Tecchio 80, 80125 Naples, Italy;
National Institute of Optics, National Research Council (INO-CNR), Viale Campi Flegrei 34, 80078 Pozzuoli, Italy;

Abstract: Thiol-capped silver nanoparticles were prepared by in situ thermal decomposition of different silver(I)-thiolates precursors in a polymeric matrix. Depending on the structure of the organic coating, contact-free distribution of metal nanoparticles or nanoparticles aggregates were achieved. The structure and morphology of nanocomposites was analyzed by Transmission Electron Microscopy (TEM), and X-Ray Diffraction (XRD). Nanoparticles\’ interaction was investigated by differential scanning calorimetry (DSC), and UV-Visible spectroscopy. In particular, only silver nanoparticles coated by n-alkyl thiols aggregated, while a contact-free dispersion was obtained by cyclohexyl thiol-capped silver nanoparticles.

Journal/Review: POLYMERS

Volume: 3 (4)      Pages from: 1794  to: 1804

KeyWords: metal-polymer nanocomposite; thiol-capped silver nanoparticles; interdigitation phenomena
DOI: 10.3390/polym3041794

Citations: 12
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