Activity coefficients of dimethyl-.BETA.-cyclodextrin in aqueous solutions.
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概要
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The activity coefficients of aqueous solutions of dimethyl-β-cyclodextrin were measured by vapor pressure osmometry at 25, 35, and 45±0.1°C. The activity coefficient decreased with increase of concentration at each temperature. Both the excess enthalpy and the excess entropy were positive. The negative excess free energy originates from the large excess entropy term, indicating that dimethyl-β-cyclodextrin is a hydrophobic solute.
- 公益社団法人 日本化学会の論文
著者
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Uekama Kaneto
Faculty Of Pharmaceutical Sciences Kumamoto University
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Miyajima Koichiro
Faculty Of Pharmaceutical Science Kyoto University
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Otagiri Masaki
Faculty Of Pharmaceutical Science Kumamoto University
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Nakagaki Masayuki
Faculty of Living Science Osaka City University
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Uekama Kaneto
Faculty of Pharmaceutical Sciences, Kumamoto University 5-1
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Mukai Takayo
Faculty of Pharmaceutical Sciences, Kyoto University Yoshida-shimoadachi-cho
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