Novel Polymerizable Surfactants from 1:1 Mixtures of Alkylcarboxylic Acids and Norbornene Methylenamine

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• 作者：Romain Bordes ; Khalid Rbii ; Alfredo Gonzá ; lez-Pé ; rez ; Sophie Franceschi-Messant ; Emile Perez ; Isabelle Rico-Lattes
• 刊名：Langmuir
• 出版年：2007
• 出版时间：July 3, 2007
• 年：2007
• 卷：23
• 期：14
• 页码：7526 - 7530
• 全文大小：323K
• 年卷期：v.23,no.14(July 3, 2007)
• ISSN：1520-5827

文摘

A new family of polymerizable surfactants was synthesized starting from a 1:1 mixture of alkylcarboxylic acids(C₁₀ to C₁₆) and norbornene methyleneamine. The ion-paired surfactants exhibited cloud temperatures, surface activity,and critical aggregation concentrations that differed according to the chain length, with a variation indicating a stronglyassociated ion pair. Light-scattering measurements and electron microscopy observations confirmed the spontaneousformation of stable vesicles (90 nm < d < 370 nm). Also, NMR experiments showed the enclosing of the norbornenepart inside the vesicle membrane. Moreover, the addition of sodium chloride allowed the formation of a tubularstructure leading to a viscous or gel-like solution. Finally, a preliminary vinylic polymerization test proved thepolymerizable character of these ion-paired surfactants by an organometallic catalysis, leading to partially polymerizedvesicles.