Structure Analysis of Drag-Reducing Surfactant Rod-Like Micelles with Fluorescence Probe
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概要
- 論文の詳細を見る
The effect of hydrophilic head of drag reducing cationic surfactants on the micellar structures has been studied by using fluorescence probe technique. Sodium 3-hydroxy-2-naphthoate, NaHN, has been used as a fluorescence probe in these experiments. Four types of surfactants having the same alkyl chain but different in number of hydroxyethyl, HE, group changed from 0 to 3 have been tested. A method of calculating the molar ratio of free counter-ions is suggested with the fluorescence decay behavior of counter-ion. From the results, it is found that the lifetime of fluorescence decay in micellar interior phase decreases while the molar fraction of free counter-ion increases when the HE group number increases. It is also found from the results on the molar ratio of free counter-ions and the comparison of Stokes diameters that the decrease of the critical Reynolds number is related to the number density of micellar structures and its strength.
- 日本レオロジー学会の論文
著者
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鈴木 洋
神戸大学大学院工学研究科応用化学専攻
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Usui Hiromoto
Department of Chemical Science and Engineering, Kobe University
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SUZUKI Hiroshi
Graduate School of Pharmaceutical Sciences, The University of Tokyo
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Nguyen Hong-Phuc
Graduate School of Science and Technology, Kobe University
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Ishihara Kiyotaka
Nippon Paint Co. Ltd.
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Suzuki Hiroshi
Graduate School Of Pharmaceutical Sciences The University Of Tokyo
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鈴木 洋
神大院工
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Usui Hiromoto
Department Of Applied Chemistry And Chemical Engineering Yamaguchi University
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