Basic behaviors and properties of the electrodeposited polyaniline.
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概要
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Basic behaviors and properties of polyaniline(PA) deposited anodically on platinum electrodes have been studied on the following points. 1) Effect of the mode of electrolysis and supporting electrolytes in the film forming process. 2) Characteristics of charging-discharging processes. 3) Electric conductivity and elemental composition of PA. The different modes of electrolysis do not affect the characteristics of the PA electrode obtained. The growth rate of PA film is 2.7–2.8 times faster in sulfuric acid than in perchloric, nitric or hydrochloric acid. It is indicated that there are two types of doping; one is associated with the acid-base equilibrium between amino or imino group in the film and proton in the solution and the other is associated with the excess charge in the film produced by anodic oxidation. The electric conductivity of PA markedly decreases by the immersion in alkali solutions. The release of doped anion from PA by treating with an alkali solution is confirmed by the elemental analysis. The amount of anions occluded by the electrochemical doping process is determined to be 0.25–0.29 per monomer unit.
- 公益社団法人 日本化学会の論文
著者
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Kitani Akira
Department Of Applied Chemistry Faculty Of Engineering Hiroshima University
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Sasaki Kazuo
Department Of Applied Chemistry Faculty Of Engineering Hiroshima University
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Yano Jun
Department of Applied Chemistry, Faculty of Engineering, Hiroshima University
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Izumi Jinko
Department of Applied Chemistry, Faculty of Engineering, Hiroshima University
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Hiromoto Yasuyuki
Department of Applied Chemistry, Faculty of Engineering, Hiroshima University
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