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Polymers 2011, 3(4), 1794-1804; doi:10.3390/polym3041794
Article

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

1,* , 1
,
1
 and
2
1 Institute for Composite and Biomedical Materials, National Research Council (IMCB-CNR), P.le Tecchio 80, 80125 Naples, Italy 2 National Institute of Optics, National Research Council (INO-CNR), Viale Campi Flegrei 34, 80078 Pozzuoli, Italy
* Author to whom correspondence should be addressed.
Received: 28 July 2011 / Revised: 28 September 2011 / Accepted: 12 October 2011 / Published: 13 October 2011
(This article belongs to the Special Issue Polymers for Optical Applications)
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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.
Keywords: metal-polymer nanocomposite; thiol-capped silver nanoparticles; interdigitation phenomena metal-polymer nanocomposite; thiol-capped silver nanoparticles; interdigitation phenomena
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Longo, A.; Carotenuto, G.; Palomba, M.; Nicola, S.D. Dependence of Optical and Microstructure Properties of Thiol-Capped Silver Nanoparticles Embedded in Polymeric Matrix. Polymers 2011, 3, 1794-1804.

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