Thermal stability and electrical characteristics of poly(2-ethyleaniline)-Au nanocomposite
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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.
KeywordsPolyaniline Hydrazine Hydrate PTSA Initial Weight Loss Chloroauric Acid
The authors are highly thankful to Dr. Pawan Kapur, Director, Central Scientific Instruments Organization (CSIO), Chandigarh for permitted us to carry out research work.
- 3.R. H. Friend, R. W. Gymer, A. B. Holmes, J. H. Burroughes, R. N. Marks, C. Taliani, D. D. C. Bradley, D. A. D. Santos, J. L. BreÂ das, M. LoÈ gdlund, W. R. Salaneck, Nature 121, 397 (1999)Google Scholar
- 8.M.R. Nabid, A.A. Entezami, Iran. Polym. J. 12, 401 (2003)Google Scholar
- 14.J. P Novak, L. C. Brousseau, F. W. Vance, R. C. Johnson, B. I. Lemon, J. T. Hupp, D. L. Feldheim, J. Am. Chem. Soc. 122, 12029 (2000)Google Scholar
- 22.N.V. Natalia, J. Stejskal, M. Trchova, J. Prokes, M. Omastová, Eur. Polym. J. 43, 233 (2007)Google Scholar