Anisotropic silver nanoparticles as filler for the formation of hybrid nanocomposites

Journal Article · Tue Jan 15 00:00:00 EST 2013 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2012.09.059· OSTI ID:22215770

Šaponjić, Zoran ^[1]; Bogdanović, Una ^[1]; Mitrić, Miodrag ^[1]; Nedeljković, Jovan ^[1]

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1. Vinča Institute of Nuclear Sciences, University of Belgrade, P.O. Box 522, 11001 Belgrade (Serbia)

Graphical abstract: Display Omitted Highlights: ► Prismatic and plate-like Ag nanoparticles were used as a precursors for preparation Ag/poly(vinyl alcohol) nanocomposite films. ► Results showed that the degree of crystallinity of the polymer decreases with Ag nanoparticles content. ► The presence of Ag nanoparticles in PVA induces higher thermo-oxidative stability with respect to PVA. -- Abstract: Prismatic and plate-like silver nanoparticles (Ag NPs) were synthesized according to the seed-mediated method. These particles were used as precursors for preparation of homogenous, transparent and colored Ag/poly(vinyl alcohol) (PVA) nanocomposite films with different concentrations of Ag by solution-casting technique. Optical and structural characterization of these nanocomposites includes UV–visible spectroscopy, X-ray diffraction (XRD), FTIR spectroscopy and SEM measurements. Further, the effect of embedded nanoparticles on the thermal properties of the PVA matrix was studied. The value of the glass transition temperature of polymer is found to increase after embedding Ag NPs. Comparison of thermal properties of pure PVA and nanocomposite films showed that the thermo-oxidative stability of polymer slightly increased in the presence of Ag NPs. Furthermore, the effect of the Ag NPs on the crystallinity of polymer was also observed.

• OSTI ID: 22215770
• Journal Information: Materials Research Bulletin, Vol. 48, Issue 1; Other Information: Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
ANISOTROPY
COMPOSITE MATERIALS
FILMS
FOURIER TRANSFORMATION
INFRARED SPECTRA
NANOSTRUCTURES
OXIDATION
PVA
SCANNING ELECTRON MICROSCOPY
SILVER
SPECTROSCOPY
THERMAL GRAVIMETRIC ANALYSIS
TRANSITION TEMPERATURE
X-RAY DIFFRACTION