Complex Formation of Semifluorinated -Cyclodextrin and Surfactants in Liquid Carbon Dioxide

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• 作者：Ha Soo Hwang ; Min Young Lee ; Yeon Tae Jeong ; Seong-Soo Hong ; Yeong-Soon Gal ; and Kwon Taek Lim
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2006
• 出版时间：May 10, 2006
• 年：2006
• 卷：45
• 期：10
• 页码：3434 - 3437
• 全文大小：237K
• 年卷期：v.45,no.10(May 10, 2006)
• ISSN：1520-5045

文摘

-Cyclodextrins functionalized at the 6-position with perfluoro butanoate groups were prepared from theesterification reaction between -cyclodextrin and perfluorobutanoic acid. The semifluorinated -cyclodextrinderivatives exhibited amphiphilic behavior and an apparent solubility in densified CO₂. They can form solublecomplexes with surfactants such as bis(2-ethylhexyl)sulfosuccinate sodium salt (AOT) and N-lauroylsarcosinesodium salt in liquid CO₂. The complex with AOT was confirmed visually and by differential scaningcalorimetry (DSC), which did not show the characteristic melting endotherm of AOT. The formation ofcomplexes of the single-tail surfactant N-lauroylsarcosine sodium salt and -cyclodextrins was also investigated.