Effect of the <i>N</i>-Methylation of Dodecylammonium Chloride on the Adsorption from Its Micellar Solution
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- Makoto Aratono
- Department of Chemistry, Faculty of Science, Kyushu University 33
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- Toru Okamoto
- Department of Chemistry, Faculty of Science, Kyushu University 33
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- Norihiro Ikeda
- Department of Chemistry, Faculty of Science, Kyushu University 33
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- Kinsi Motomura
- Department of Chemistry, Faculty of Science, Kyushu University 33
抄録
<jats:title>Abstract</jats:title> <jats:p>The surface tension of the aqueous solution of dodecylmethylammonium chloride (DMAC) and dodecyldimethylammonium chloride (DDAC) was measured as a function of temperature under atmospheric pressure at concentrations below and above the critical micelle concentration (cmc). The entropy and energy of adsorption from the monomeric state in the aqueous solution and the micellar state were evaluated by applying the thermodynamic equations of adsorption to the surface tension values. The thermodynamic quantities were compared with those of the aqueous solutions of dodecylammonium chloride (DAC) and dodecyltrimethylam-monium chloride (DTAC). It was found that the successive N-methylation of DAC has a considerable effect on the adsorbed film with changes in its surface density, entropy, and energy brought about by changes in the geometry and the hydrophilicity of the polar head group.</jats:p>
収録刊行物
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- Bulletin of the Chemical Society of Japan
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Bulletin of the Chemical Society of Japan 61 (8), 2773-2778, 1988-08-01
Oxford University Press (OUP)
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詳細情報 詳細情報について
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- CRID
- 1360565169056426112
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- NII論文ID
- 130001981102
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- ISSN
- 13480634
- 00092673
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- データソース種別
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