Journal
MATERIALS CHEMISTRY AND PHYSICS
Volume 81, Issue 1, Pages 104-107Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/S0254-0584(03)00147-0
Keywords
nanostructures; polymers; optical properties
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Silver nanoparticles in hyperbranched polyurethane (HP) matrix were prepared by means of UV irradiation at room temperature. HP was found to play a key role in the photochemical reduction of silver ions and the formation of nanosized particles. Transmission electron microscopic (TEM) analysis showed that silver nanoparticles were homogeneously dispersed in HP matrix. The absorption peaks due to the surface plasmon resonance of the obtained silver nanoparticles were observed at about 430 nm in the ultraviolet-visible (UV-Vis) absorption spectra. X-ray powder diffraction (XRD) was also used to characterize the obtained nanoparticles. (C) 2003 Elsevier Science B.V. All rights reserved.
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