Thermal stability and electrical characteristics of poly(2-ethyleaniline)-Au nanocomposite

Vohra, Sujata and Singh, Narinder and Mittal, S.K. and Singla, M.L. (2013) Thermal stability and electrical characteristics of poly(2-ethyleaniline)-Au nanocomposite. Journal of Materials Science: Materials in Electronics, 24 (8). pp. 2689-2694. ISSN 0957-4522

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The Present work reports the synthesis of poly2-ethyleaniline (PEANI) by oxidative polymerization of 2-ethyleaniline and its composite with gold nanoparticles (AuNPs) via in situ chemical synthesis route (simultaneous polymerization and precipitation). PEANI and its nanocomposite were characterized by thermogravimetric analysis-differential Scanning Calorimetry, X-ray diffraction and Fourier transform-infrared. The structural confirmation of the polymer was confirmed by FT-IR which shows strong absorption starting at ~1,600 cm−1 and extended to near-IR, Attributed to the presence of free carrier in the polymer. XRD of Polymer shows large X-rays peaks indicating that the material is rather amorphous with a certain degree of crystallinity where as XRD of PEANI-Au nanocomposite confirms the incorporation of AuNPs in composite. The TEM image showed the formation of PEANI-AuNPs core shell nanostructure. From TGA–DSC studies it was confirmed that the decomposition of the polymer in the composite is lowered by 254 °C as compare to PEANI alone, resulting in weak structure. Whereas I–V characteristics’ shows that the composite has about 10 % lower conductance values than the polymer alone.

Item Type: Article
Subjects: CSIO > Chemistry
CSIO > Materials Science
Divisions: Agri - Instrumentation
Depositing User: Ms. J Shrivastav
Date Deposited: 21 Mar 2014 11:12
Last Modified: 21 Mar 2014 11:12

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