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Polymers 2011, 3(3), 1352-1362; doi:10.3390/polym3031352

Nanocomposites Based on Metal and Metal Sulfide Clusters Embedded in Polystyrene

1,* , 2
1 Istituto per i Materiali Compositi e Biomedici, CNR, Piazzale V. Tecchio, Napoli 80-80125, Italy 2 Istituto di Cristallografia, CNR, Via G. Amendola, Bari 122/O-70126, Italy
* Author to whom correspondence should be addressed.
Received: 9 July 2011 / Accepted: 10 August 2011 / Published: 22 August 2011
(This article belongs to the Special Issue Polymer-Inorganic Hybrids and Their Applications)
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Transition-metal alkane-thiolates (i.e., organic salts with formula Me(SR)x, where R is a linear aliphatic hydrocarbon group, –CnH2n+1) undergo a thermolysis reaction at moderately low temperatures (close to 200 °C), which produces metal atoms or metal sulfide species and an organic by-product, disulfide (RSSR) or thioether (RSR) molecules, respectively. Alkane-thiolates are non-polar chemical compounds that dissolve in most techno-polymers and the resulting solid solutions can be annealed to generate polymer-embedded metal or metal sulfide clusters. Here, the preparation of silver and gold clusters embedded into amorphous polystyrene by thermolysis of a dodecyl-thiolate precursor is described in detail. However, this chemical approach is quite universal and a large variety of polymer-embedded metals or metal sulfides could be similarly prepared.
Keywords: metal clusters; thiolates; nanocomposites; polymer; optical properties metal clusters; thiolates; nanocomposites; polymer; optical properties
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Carotenuto, G.; Giannini, C.; Siliqi, D.; Nicolais, L. Nanocomposites Based on Metal and Metal Sulfide Clusters Embedded in Polystyrene. Polymers 2011, 3, 1352-1362.

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