Studies of the measurement of the intermicellar concentration of surfactants by gel filtration.
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概要
- 論文の詳細を見る
Equations are derived which are used to calculate the intermicellar concentration (<I>C</I><SUB>s</SUB>) of a surfactant from measurements of the elution volumes of micelles, the elution front and the intermicellar monodisperse molecules or ions. These quantities are obtained by the gel filtration of a surfactant charged in band form through a gel column previously filled with the same surfactant at a lower concentration. The <I>C</I><SUB>s</SUB> values found are not constant, but increase and the increase becomes less pronounced with the concentration (<I>C</I>) of the surfactant, both for sodium dodecyl sulfate and α-dodecyl-ω-hydroxyhexa(oxyethylene). This confirms that the concentration <I>C</I>–<I>C</I><SUB>s</SUB> of the micelles which move during the gel filtration is smaller than the usually-employed concentration <I>C</I>–<I>C</I><SUB>m</SUB> of micelles in a stationary state, where <I>C</I><SUB>m</SUB> denotes the critical micelle concentration.
- 公益社団法人 日本化学会の論文
著者
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Suzuki Hitoshi
Department Of Animal Science Faculty Of Agriculture Tohoku University
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Sasaki Tsunetaka
Department of Chemistry Faculty of Science Tokyo Metropolitan University
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Sasaki Tsunetaka
Department of Chemistry, Faculty of Science, Tokyo Metropolitan University
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Yasuoka Misako
Department of Chemistry, Faculty of Science, Tokyo Metropolitan University
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