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Characterization of silver/polystyrene nanocomposites prepared by in situ bulk radical polymerization

•Synthesis and characterization of polystyrene nanocomposites based on Ag nanoparticles.•The glass transition temperature decreased in nanocomposites with respect to the pure polymer.•Resistance of the polymer to thermal degradation enhanced with Ag nanoparticles content. Nanocomposites (NCs) with d...

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Published in:Materials research bulletin 2014-01, Vol.49, p.434-439
Main Authors: Vukoje, Ivana D., Vodnik, Vesna V., Džunuzović, Jasna V., Džunuzović, Enis S., Marinović-Cincović, Milena T., Jeremić, Katarina, Nedeljković, Jovan M.
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cited_by cdi_FETCH-LOGICAL-c352t-e01003cc1f710a9377b78812f214de0ad48e1ee59ca8dea41f2f8d555c431b43
cites cdi_FETCH-LOGICAL-c352t-e01003cc1f710a9377b78812f214de0ad48e1ee59ca8dea41f2f8d555c431b43
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container_title Materials research bulletin
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creator Vukoje, Ivana D.
Vodnik, Vesna V.
Džunuzović, Jasna V.
Džunuzović, Enis S.
Marinović-Cincović, Milena T.
Jeremić, Katarina
Nedeljković, Jovan M.
description •Synthesis and characterization of polystyrene nanocomposites based on Ag nanoparticles.•The glass transition temperature decreased in nanocomposites with respect to the pure polymer.•Resistance of the polymer to thermal degradation enhanced with Ag nanoparticles content. Nanocomposites (NCs) with different content of silver nanoparticles (Ag NPs) embeded in polystyrene (PS) matrix were prepared by in situ bulk radical polymerization. The nearly monodisperse Ag NPs protected with oleylamine were synthesized via organic solvo-thermal method and further used as a filler. The as-prepared spherical Ag NPs with diameter of 7.0±1.5nm were well dispersed in the PS matrix. The structural properties of the resulting Ag/PS NCs were characterized by transmission electron microscope (TEM) and Fourier transform infrared (FTIR) spectroscopy, while optical properties were characterized using optical absorption measurements. The gel permeation chromatography (GPC) measurements showed that the presence of Ag NPs stabilized with oleylamine has no influence on the molecular weight and polydispersity of the PS matrix. The influence of silver content on the thermal properties of Ag/PS NCs was investigated by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The results indicated that resistance of PS to thermal degradation was improved upon incorporation of Ag NPs. The Ag/PS NCs have lower glass transition temperatures than neat PS because loosely packed oleylamine molecules at the interface caused the increase of free volume and chain segments mobility near the surface of Ag NPs.
doi_str_mv 10.1016/j.materresbull.2013.09.029
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Nanocomposites (NCs) with different content of silver nanoparticles (Ag NPs) embeded in polystyrene (PS) matrix were prepared by in situ bulk radical polymerization. The nearly monodisperse Ag NPs protected with oleylamine were synthesized via organic solvo-thermal method and further used as a filler. The as-prepared spherical Ag NPs with diameter of 7.0±1.5nm were well dispersed in the PS matrix. The structural properties of the resulting Ag/PS NCs were characterized by transmission electron microscope (TEM) and Fourier transform infrared (FTIR) spectroscopy, while optical properties were characterized using optical absorption measurements. The gel permeation chromatography (GPC) measurements showed that the presence of Ag NPs stabilized with oleylamine has no influence on the molecular weight and polydispersity of the PS matrix. The influence of silver content on the thermal properties of Ag/PS NCs was investigated by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The results indicated that resistance of PS to thermal degradation was improved upon incorporation of Ag NPs. The Ag/PS NCs have lower glass transition temperatures than neat PS because loosely packed oleylamine molecules at the interface caused the increase of free volume and chain segments mobility near the surface of Ag NPs.</abstract><cop>United States</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.materresbull.2013.09.029</doi><tpages>6</tpages></addata></record>
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ispartof Materials research bulletin, 2014-01, Vol.49, p.434-439
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source ScienceDirect Journals
subjects A. Composites
A. Metal
ABSORPTION
C. Differential scanning calorimetry (DSC)
C. Thermogravimetric analysis (TGA)
CALORIMETRY
D. Optical properties
FOURIER TRANSFORMATION
GEL PERMEATION CHROMATOGRAPHY
GLASS
INFRARED SPECTRA
MATERIALS SCIENCE
NANOCOMPOSITES
NANOPARTICLES
NANOSCIENCE AND NANOTECHNOLOGY
OPTICAL PROPERTIES
POLYMERIZATION
POLYSTYRENE
SILVER
SPECTROSCOPY
SURFACES
SYNTHESIS
THERMAL GRAVIMETRIC ANALYSIS
TRANSITION TEMPERATURE
TRANSMISSION ELECTRON MICROSCOPY
title Characterization of silver/polystyrene nanocomposites prepared by in situ bulk radical polymerization
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