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Thermo-chromic films based on silver/polystyrene nanocomposites have been prepared by thermal annealing of silver dodecylmercaptide/polystyrene blends at ca. 200°C. The rapid and reversible color switch (from dark-brown to light-yellow) observed at ca. 80°C is probably related to a change in the surface-plasmon absorption of silver nanoparticles that follows to variation of inter-particle distances...
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