In situ FTIR Spectroscopy of Polyaniline

  • N. S. Sariciftci
  • H. Neugebauer
  • H. Kuzmany
  • A. Neckel
Conference paper
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 76)

Abstract

The infrared absorption of electrochemically synthesized polyaniline is measured in situ during the electrochemical redox processes in non aqeous electrolytes with Fourier Transform (FTIR) technique. The first oxidation process is associated with a strong increase in the background absorption in addition to vibrational changes due to the benzenoid-semiquinoid transition in the ring structure and loss of protons bound to the nitrogen atoms. In the second oxidation process intercalation of anions occurs, the background absorption decreases and quinoid ring bands appear. From these results and neutron activation analysis of anions in the polymer we derived a structural model of polyaniline, which explains the changes in the two redox processes.

Keywords

Platinum Acetonitrile FTIR Spectroscopy PANI Aniline 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Literature

  1. 1.
    E. W. Paul, A. J. Ricco, M. S. Wrighton: J. Phys. Chem. 89, 1441 (1985)CrossRefGoogle Scholar
  2. 2.
    W. S. Huang, B. D. Humprey, A. G. MacDiarmid: J. Chem. Soc. Faraday Trans. 1, 82(1986)Google Scholar
  3. 3.
    W. R. Salaneck, I. Lundström, T. Hjertberg, C. B. Duke,, E. Conwell, A. Paton, A. G. MacDiarmid, N. L. D. Somasiri, W. S. Huang, A. F. Richter: Synth. Metals 18, 291 (1987)CrossRefGoogle Scholar
  4. 4.
    A. Bewick: In Trends in Interfacial Electrochemistry, ed. by A. F. Silva (D. Reidel Publ., 1986) p. 331Google Scholar
  5. 5.
    H. Neugebauer, A. Neckel, N. Brinda-Konopik: In Springer Series in Solid State Sci., ed. by H. Kuzmany, M. Mehring, S. Roth, Vol. 63 (Springer, Berlin, Heidelberg 1985) p. 227Google Scholar
  6. 6.
    S. Stafström: this volumeGoogle Scholar
  7. 7.
    J. L. Bredas: this volumeGoogle Scholar
  8. 8.
    A. J. Epstein, J. M. Ginder, F. Zuo, H. S. Woo, D. D. Tanner, A. F. Richter, M. Angelopoulos, W. S. Huang, A. G. MacDiarmid: Synth. Metals, in pressGoogle Scholar
  9. 9.
    Yong Cao, Suzhen Li, Zhijiann Xue, Ding Guo: Synth, Metals 16, 305 (1986)CrossRefGoogle Scholar
  10. 10.
    H. Kuzmany, N. S. Sariciftci: Synth. Metals 18, 353 (1987)CrossRefGoogle Scholar
  11. 11.
    N. S. Sariciftci, H. Kuzmany: Synth. Metals, in pressGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1987

Authors and Affiliations

  • N. S. Sariciftci
    • 1
  • H. Neugebauer
    • 3
  • H. Kuzmany
    • 1
  • A. Neckel
    • 2
    • 3
  1. 1.Institut für FestkörperphysikUniversität WienWienAustria
  2. 2.Ludwig Boltzmann Institut für FestkörperphysikWienAustria
  3. 3.Institut für Physikalische ChemieUniversität WienWienAustria

Personalised recommendations