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  • Title: A triptycene-based approach to solubilising carbon nanotubes and C60.
    Author: Hammershøj P, Bomans PH, Lakshminarayanan R, Fock J, Jensen SH, Jespersen TS, Brock-Nannestad T, Hassenkam T, Nygård J, Sommerdijk NA, Kilså K, Bjørnholm T, Christensen JB.
    Journal: Chemistry; 2012 Jul 09; 18(28):8716-23. PubMed ID: 22693135.
    Abstract:
    We describe herein the synthesis of a triptycene-based surfactant designed with the ability to solubilise single-walled carbon nanotubes (SWNTs) and C(60) in water through non-covalent interactions. Furthermore, an amphiphilic naphthalene-based surfactant with the same ability to solubilise SWNTs and C(60) has also been prepared. The compounds synthesised were designed with either two ionic or non-ionic tails to ensure a large number of supramolecular interactions with the solvent, thereby promoting strong solubilisation. The surfactants produced stable suspensions in which the SWNTs are dispersed and the surfactant/SWNT complexes formed are stable for more than one year. UV/Vis/NIR absorption spectroscopy, TEM and AFM were employed to probe the solubilisation properties of the dispersion of surfactants and SWNTs in water.
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