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Journal of Nanomaterials
Volume 2012, Article ID 435412, 6 pages
http://dx.doi.org/10.1155/2012/435412
Research Article

Polyvinylchloride-Single-Walled Carbon Nanotube Composites: Thermal and Spectroscopic Properties

1Department of Physics and Geology, The University of Texas Pan-American, Edinburg, TX 78539, USA
2Department of Chemistry, The University of Texas Pan-American, Edinburg, TX 78539, USA
3Department of Mechanical Engineering, The University of Texas Pan-American, Edinburg, TX 78541, USA
4Department of Mechanical Engineering, University of New Orleans, LA 70148, USA

Received 17 December 2011; Accepted 14 February 2012

Academic Editor: Sevan P. Davtyan

Copyright © 2012 Mircea Chipara et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Nanocomposites of single-walled carbon nanotubes dispersed within polyvinylchloride have been obtained by using the solution path. High-power sonication was utilized to achieve a good dispersion of carbon nanotubes. Thermogravimetric analysis revealed that during the synthesis, processing, or thermal analysis of these nanocomposites the released chlorine is functionalizing the single-walled carbon nanotubes. The loading of polyvinylchloride by single-walled carbon nanotubes increases the glass transition temperature of the polymeric matrix, demonstrating the interactions between macromolecular chains and filler. Wide Angle X-Ray Scattering data suggested a drop of the crystallite size and of the degree of crystallinity as the concentration of single-walled carbon nanotubes is increased. The in situ chlorination and amorphization of nanotube during the synthesis (sonication step) is confirmed by Raman spectroscopy.