The Determination of the Diffusion Coefficient and the Maximum Surface Concentration of Polyvinylpyrrolidone by Means of a Hanging Mercury Drop Electrode

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概要

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• Subsequently to the previous work with a dropping mercury electrode (DME), the diffusion coefficient (<I>D</I>) and the maximum surface concentration (Γ<I><SUB>m</SUB></I>) for polyvinylpyrrolidone (PVP) were determined in a In sulfuric acid solution by means of a hanging mercury drop electrode (HMDE). The values of <I>D</I> and Γ<I><SUB>m</SUB></I> for PVP were obtained separately by means of the equation for a semi-infinite spherical diffusion for HMDE. The results for <I>D</I> were compared with the values evaluated from the Stokes-Einstein equation or with those previously published. The results for Γ<I><SUB>m</SUB></I> are also shown in comparison with those values to be expected from the data obtained by the use of DME or HMDE on the assumption of linear diffusion and <I>D</I>, or in comparison with the results published by Jehring. It was also confirmed that the HMDE used by the authors is almost satisfactory for the determination of <I>D</I> and Γ<I><SUB>m</SUB></I> in this case.

• 公益社団法人 日本化学会の論文

著者

• Ohsaka Tetsuya

  Applied Electrochemical Laboratory, Graduate School of Science and Engineering, Waseda University

• Yoshida Tadashi

  Applied Electrochemical Laboratory, Graduate School of Science and Engineering, Waseda University

• Nomoto Shigemitsu

  Applied Electrochemical Laboratory, Graduate School of Science and Engineering, Waseda University

関連論文

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• Adsorption of Polyethyleneglycol at the Mercury/Solution Interface
• Adsorption and Inhibition Effect of Triton X at the Mercury/Solution Interface
• The Adsorption of Polyvinylpyrrolidone at the Mercury/Solution Interface
• Competitive Adsorption of Polyvinylpyrrolidone with n-Alkyl Alcohols at the Mercury/Solution Interface
• The Determination of the Diffusion Coefficient and the Maximum Surface Concentration of Polyvinylpyrrolidone by Means of a Hanging Mercury Drop Electrode

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