電気化学マイクロバランス法による電解重合ポリピロール膜におけるイオンの動的挙動のin situ解析(<特集>表面・界面・薄膜と分析化学)

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  • In-situ analysis of the kinetic behavior of ion transport in electropolymerized polypyrrole by electrochemical quartz crystal microbalance method.
  • 電気化学マイクロバランス法による電解重合ポリピロール膜におけるイオンの動的挙動のｉｎ　ｓｉｔｕ解析
  • デンキ カガク マイクロバランスホウ ニ ヨル デンカイ ジュウゴウ ポリピ

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抄録

The mass changes during the electrochemical polymerization reaction of pyrrole with dodecylsulfonate(DS-) were analyzed using the electrochemical quartz crystal microbalance(EQCM). Fixed potential electropolymerization was performed when the concentration of DS- was above (0.1M) and below the critical micelle concentration, 0.005M. The doping ratio of polypyrrole with DS- was found to be 0.7 at 0.1M DS- and 0.18 at 0.005M DS-. Such a difference could be explained in terms of the possible presence of incompletely dissociated micelles remaining in the film after electropolymerization. The EQCM measurement of the resulting polypyrrole film demonstrated that the mass transport involved both anion and cation exchange, the ratio of which depended strongly on the potential scan rate of the cyclic voltammentry. The presence of kinetic restrictions on the movement of DS- as an anion was observed at high sweep rates.

収録刊行物

  • 分析化学

    分析化学 40 (11), 835-841, 1991

    公益社団法人 日本分析化学会

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