Association Behavior and Ordered Nanoaggregation of Charged Fullerene Derivatives and Cationic Surfactants in Solution

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• 作者：Ksenija Kogej ; Bart Goderis
• 刊名：Journal of Physical Chemistry C
• 出版年：2007
• 出版时间：February 22, 2007
• 年：2007
• 卷：111
• 期：7
• 页码：2892 - 2900
• 全文大小：204K
• 年卷期：v.111,no.7(February 22, 2007)
• ISSN：1932-7455

文摘

The complexation between fullerene hexamalonate anions (FHM^-) and dodecyl- (DP⁺) and cetylpyridinium(CP⁺) cations was studied in aqueous solutions in the absence and in the presence of NaCl by potentiometricand fluorimetric measurements. Results demonstrated a high association tendency between FHM^- and cationicsurfactants in aqueous solution, with characteristics similar to those found in complexes of linear polyelectrolyteswith surfactants. It is proposed that FHM^- spheres gradually arrange themselves into agglomerates of bindingsites in conjunction with surfactant. SAXS studies on precipitated, wet surfactant/FHM^- complexes suggestthe formation of highly ordered lamellar and hexagonally packed cylinder structures.