界面活性剤のコロイド学的研究 (第24報) : 界面活性剤ミセルへの染料の可溶化と流動二色性

概要

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In order to obtain information on the mode of solubilization of water-insoluble dyes into the micelles of nonionic surfactants, polyoxyethylene alkyiphenylethers, the solubilization ratios of dyes to the micelle and their flow dichroism have been investigated. Dyes used are Orange OT and 1, 4-diaminoanthraquinone. Experimental results showed that in every case one molecule of dye is solubilized per micelle at saturation. Above 100g/l of the surfactant concentration flow dichroism was clearly observed and constant differential dichroism was obtained. These facts suggest that above this concentration the shape of the surfactant micelles deviates markedly from sphere and the solubilized dyes orientate in the non-spherical micelles.<BR>
社団法人日本油化学会の論文