In-situ external reflection FTIR studies on the electrochemically polymerized polyphenylene

Carita Kvarnstrom; A. Ivaska

doi:10.1117/12.56399

1 March 1992 In-situ external reflection FTIR studies on the electrochemically polymerized polyphenylene

Carita Kvarnstrom, A. Ivaska

Proceedings Volume 1575, 8th Intl Conf on Fourier Transform Spectroscopy; (1992) https://doi.org/10.1117/12.56399
Event: Eighth International Conference on Fourier Transform Spectroscopy, 1991, Lubeck-Travemunde, Germany

Abstract

In situ external FTIR measurements were made on electrochemically polymerized polyphenylene film, made from biphenyl using acetonitrile as solvent and TBABF4, (tetrabutylammonium-tetrafluoroborate), as electrolyte salt. Effects of current density on the formation of oligomers and the ratio of ortho and para substituted polymer chains during film growth and the resulting chain length were studied. Polymer films, made from different dimer concentrations, where step-wise potential cycled in the electrolyte solution. Changes in the IR- spectrum of the film were studied when going from the neural to the oxidized and to the overoxidized states of the polymer. The amount of solvent, counterion and residual water still in the film or adsorbed on it were found to depend on the potential applied to the film. The ion content and transport in the films depended on the thickness of the film.

Citation Download Citation

Carita Kvarnstrom and A. Ivaska "In-situ external reflection FTIR studies on the electrochemically polymerized polyphenylene", Proc. SPIE 1575, 8th Intl Conf on Fourier Transform Spectroscopy, (1 March 1992); https://doi.org/10.1117/12.56399

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