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Preparation and characterization of conducting polymer composite films: polypyrrole and Polyethylene

Lim, Mei Yee and Kassim, Anuar and Ekramul Mahmud, H. N. M. and Mohd Sharif, Atan and Haron, Md Jelas (2007) Preparation and characterization of conducting polymer composite films: polypyrrole and Polyethylene. The Malaysian Journal of Analytical Sciences, 11 (1). pp. 133-138. ISSN 1394-2506

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Polypyrrole-poly ethylene glycol (Ppy-PEG) composites were synthesized by electrochemical method using r-toluene sulfonate as a dopant in aqueous medium. Polyethylene glycol was used as the insulating material in order to impart enhanced mechanical properties to the conducting polymer composite films. The composite films were synthesized with various percentages of PEG, and were characterized by FT-IR spectroscopy, conductivity measurement, optical microscopy (OP), X-ray diffraction (XRD) and dynamic mechanical analysis (DMA). The FT-IR result reveals the successful incorporation of PEG into the polypyrrole structure forming Ppy-PEG composite films. The conductivity of the composite films prepared from using 0.20% PEG was found to exhibit the highest conductivity (61.28 Scm-1) among all the prepared composite films measured at room temperature. The optical microscopy of Ppy-PEG shows the globular surface morphology. The XRD analysis of Ppy-PEG composite films shows that the composite films are amorphous. The enhanced mechanical properties of the Ppy-PEG composite films are the direct consequence of incorporating PEG in the polypyrrole structure.

Item Type:Article
Keyword:Polypyrrole, polyethylene glycol, electrochemical method, r-toluene sulfonate
Faculty or Institute:Faculty of Science
Publisher:Universiti Kebangsaan Malaysia
ID Code:11567
Deposited By: Najwani Amir Sariffudin
Deposited On:07 Apr 2011 02:51
Last Modified:07 Apr 2011 02:57

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