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.
- 一般社団法人 日本レオロジー学会の論文
- 2006-02-15
著者
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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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Usui Hiromoto
Dep. Of Chemical Sci. And Engineering Kobe Univ.
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薄井 洋基
神戸大
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Usui Hiromoto
Department Of Applied Chemistry And Chemical Engineering Yamaguchi University
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Nguyen Hong-phuc
Graduate School Of Science And Technology Kobe University
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SUZUKI Hiroshi
Graduate School of Engineering, Hokkaido University
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SUZUKI Hiroshi
Graduate School of Computer Science and System Engineering Kyushu Institute of Technology
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