Fluorocarbon Hybrid Surfactants Characterization of Admicelles and Its Solubilization
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- 作者：Masahiko Abe ; Akihiro Saeki ; Keiji Kamogawa ; Hideki Sakai ; Yukishige Kondo ; Norio Yoshino ; Hirotaka Uchiyama ; and Jeffery H. Harwell
- 刊名：Industrial & Engineering Chemistry Research
- 出版年：2000
- 出版时间：August 2000
- 年：2000
- 卷：39
- 期：8
- 页码：2697 - 2703
- 全文大小：290K
- 年卷期：v.39,no.8(August 2000)
- ISSN：1520-5045
文摘
Admicelle formation of the fluorocarbon hybrid surfactant 1-oxo-1-[4-(fluoroalkyl)phenyl]-2-alkanesulfonate (FCm-HCn) on the aluminum oxide particle surface has been studied by theadsorption isotherm, 
-potential of the particle surface, degree of counterion dissociation, contactangle, and pyrene fluorescence probe measurement. Solution properties of FCm-HCn have beencompared with a dialkyl hydrocarbon surfactant, sodium 1-4-alkylphenyl-1-oxo-2-alkanesulfonate(HCm-HCn). Adsorption isotherm study and -potential measurement indicate that thefluorocarbon hybrid surfactant can adsorb on the aluminum oxide surface at lower concentrationsthan the hydrocarbon surfactant. Furthermore, the total amount of surfactant adsorbed on thealuminum oxide surface is higher than that of the hydrocarbon surfactant. A pyrene fluorescenceprobe study shows that pyrene molecules are solubilized near the hydrocarbon chain of thesurfactant molecules, indicating that the hydrocarbon domain exists in the fluorocarbon hybridsurfactant admicelle. No pyrene excimer formation is observed in the hybrid surfactant admicellebut in the hydrocarbon surfactant, implying the hybrid surfactant molecules are packed tightlyin the admicelle. In addition, the admicelle of the hybrid surfactant is capable of solubilizingboth 2-naphthol and 1-trifluoromethyl-2-naphthol and the total amount of solubilized soluteincreases with increasing surfactant concentration.
-potential of the particle surface, degree of counterion dissociation, contactangle, and pyrene fluorescence probe measurement. Solution properties of FCm-HCn have beencompared with a dialkyl hydrocarbon surfactant, sodium 1-4-alkylphenyl-1-oxo-2-alkanesulfonate(HCm-HCn). Adsorption isotherm study and -potential measurement indicate that thefluorocarbon hybrid surfactant can adsorb on the aluminum oxide surface at lower concentrationsthan the hydrocarbon surfactant. Furthermore, the total amount of surfactant adsorbed on thealuminum oxide surface is higher than that of the hydrocarbon surfactant. A pyrene fluorescenceprobe study shows that pyrene molecules are solubilized near the hydrocarbon chain of thesurfactant molecules, indicating that the hydrocarbon domain exists in the fluorocarbon hybridsurfactant admicelle. No pyrene excimer formation is observed in the hybrid surfactant admicellebut in the hydrocarbon surfactant, implying the hybrid surfactant molecules are packed tightlyin the admicelle. In addition, the admicelle of the hybrid surfactant is capable of solubilizingboth 2-naphthol and 1-trifluoromethyl-2-naphthol and the total amount of solubilized soluteincreases with increasing surfactant concentration.