A triptycene-based approach to solubilising carbon nanotubes and C60


Hammershoj, P., Bomans, P.H.H., Lakshminarayanan, R., Fock, J., Jensen, S.H., Jespersen, T.S., Brock-Nannestad, T., Hassenkan, T., Nygard, J., Sommerdijk, N.A.J.M., Kilsa, K., Bjorholm, T. & Christensen, J.B. (2012). A triptycene-based approach to solubilising carbon nanotubes and C60. Chemistry : A European Journal, 18(28), 8716-8723. In Scopus Cited 13 times.

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We describe herein the synthesis of a triptycene-based surfactant designed with the ability to solubilise single-walled carbon nanotubes (SWNTs) and C60 in water through non-covalent interactions. Furthermore, an amphiphilic naphthalene-based surfactant with the same ability to solubilise SWNTs and C60 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.