• P-ISSN1225-0163
  • E-ISSN2288-8985
  • SCOPUS, ESCI, KCI

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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

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    Electrochemical Study of Poly(aniline N-alkylsulfonate)s

    Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
    1995, v.8 no.4, pp.631-636
    Kim, Eunkyoung
    Rhee, Suh Bong
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    Abstract

    Electrochemical properties of self-dopable poly(aniline N-butylsulfonate)s in various acidic medium were investigated by spectroelectrochemical techniques. Cyclic voltammetric study showed more than two reversible process of one electron transfer, the potential and peak intensity of which were dependent on the acid concentration and dopant ion. Spectroscopic study at different oxidation level indicated that the electrochromic switching of the poly(aniline N-alkylsulfonate)s film involves structural changes from benzenoid ring to quinoid ring. Spectrocyclic voltammetry together with impedance spectra of the PANBUS film in 0.1 M <TEX>$LiClO_4$</TEX> solution of acetonitrile containing 0.46 M of perchloric acid showed two types of highly conductive states at the intermediate oxidation levels, which can be related to the metallic polaron states doped by two different process.

    keywords
    poly(aniline N-alkylsulfonate)s, poly(aniline N-butylsulfonate)s, doping mechanism, spectroelectrochemistry, impedance study


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