Micellization of Zonyl FSN-100 fluorosurfactant in aqueous solutions

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• 作者：Juraj 艩kvarla ; Mariusz Uchman ; Karel Proch谩zka ; Zden臎k To拧ner ; Vasil M. Garamus ; Stergios Pispas ; Miroslav 艩t臎p谩nek
• 关键词：Fluorosurfactant ; Scattering ; Fluorescence ; Micelles
• 刊名：Colloids and Surfaces A: Physicochemical and Engineering Aspects
• 出版年：20 February, 2014
• 年：2014
• 卷：443
• 期：Complete
• 页码：209-215
• 全文大小：766 K

文摘

We report on micellization of nonionic fluorosurfactant Zonyl FSN-100 in aqueous solutions studied by means of NMR spectroscopy, light and small-angle X-ray scattering, surface tension measurements, isothermal titration calorimetry and fluorescence spectroscopy. The results allow for determination of basic parameters of Zonyl FSN-100 association like critical micellar concentration, size and association number of Zonyl FSN-100 micelles which have a core-shell structure with the core of fluorocarbon chains and the shell of oligo(ethylene oxide) chains. Time-resolved fluorescence spectroscopy studies using 1,6-diphenyl-1,3,5-hexatriene (DPH) as a fluorescent probe indicate that DPH can be solubilized in the micelles despite the general assumption about the immiscibility of hydrocarbon compounds with the fluorocarbon core of the micelles.