Critical Micelle Concentrations of Perfluoroalkanesulfonate Salts in Aqueous Solution.
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- TAMAKI Kunio
- Department of Chemistry, Yokohama City University
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- KOBAYASHI Kenji
- Department of Chemistry, Yokohama City University
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- NOMURA Toshio
- Department of Chemistry, Yokohama City University
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- IIJIMA Masahiro
- Department of Chemistry, Yokohama City University
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- SHIMOI Misho
- Department of Chemistry, Yokohama City University
Bibliographic Information
- Other Title
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- ペルフルオロアルカンスルホン酸塩水溶液の臨界ミセル濃度
- ペルフルオロアルカンスルホンサンエン スイヨウエキ ノ リンカイ ミセル ノウ
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Abstract
Determination was made of critical micelle concentrations (cmc) for three ho-mologs of perfluoroalkanesulfonate salts, CnF2n+1SO3Li (n=4, 6, 8, 10), CnF2n+1SO3Me4N (n=4, 6, 8, 10), and CnF2n+1SO3Et4N (n=4, 6, 8) in aqueous solutions at 25°C, and the results are expressed in the form, log cmc=A+Bn. B values are -0.435-0.465, indicating cmc to decrease by 2.72.9 for each CF2 group added to perfluoroalkyl chain. Due to the high Krafft points of sodium and potassium salts, the influence of counterions on cmc for C6H13SO3-M+ (M=Li, Na, K, Me4N, and Et4N) was examined at 65°C. It was found that cmc decreased in the order of Li> Na> K> Me4N> Et4N, and this order is discussed on the basis of ionic hydration of alkali metal ions and the hydrophobic interactions of quaternary ammonium ions with micelles.
Journal
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- Journal of Japan Oil Chemists' Society
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Journal of Japan Oil Chemists' Society 46 (2), 209-212, 1997
Japan Oil Chemists' Society
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Details
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- CRID
- 1390001204091674880
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- NII Article ID
- 10002271959
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- NII Book ID
- AN10512582
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- ISSN
- 18841996
- 13418327
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- NDL BIB ID
- 4150540
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed