| RASĀYAN - Journal Of Chemistry | Vol.3, No.1, 1-200 (2010) |
ELECTROCHEMICAL SYNTHESIS AND CHARACTERIZATION OF H2SO4 DOPED ANILINE
Authors: G. Umadevi1, V. Ponnusamy2 , M. Paramsivam3 and S.Palaniswamy4
1Department of Physics, Govt. Arts College, Coimbatore, India; 2 Department of Physics , SRMV College of Arts & Science, Coimbatore, India; 3Functional Material Division, CECRI, Karaikudi, India; 4 Department of Physics, PSG CAS, Coimbatore. India; E-mail: amukaraish@yahoo.co.in
Sulphuric acid doped aniline is synthesized by electrochemical method at 1.7V and characterized by FTIR, UV, NMR, XRD, CV, SEM techniques and conductivity, solubility, impedance measurements and corrosion inhibitor test and the results are analysed. FTIR spectra confirmed the presence of polarons and bipolarons in polymer samples. XRD study showed the microstructure of polyaniline. UV spectra revealed the absorption peaks due to p-p* transition of polyaniline. The higher wavelength enhanced the intrinsic conductivity. NMR study revealed the fact that polymerization was initiated at 1.7V. The conductivity measurement by four probe method showed the conductivity of 0.83 S/cm. The electrochemical redox activity of PANI is confirmed in the cyclic voltamogram. PANI’s solubility in DMSO, NMP, DMF is verified. Polyaniline incorporated with ZnO in 2M NaOH solution confirmed the inhibition to corrosion of commercial aluminum alloys. Impedance plot supports the charge transfer process.
| Page No. : 194-200 | Received: 30 December 2009 Accepted: 27 February 2010 RJC-505 |
