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Issue 7, 2010

Superstructures and superhydrophobic property in hierarchical organized architectures of fullerenes bearing long alkyl tails

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Abstract

Formation of hierarchically self-organized architectures in organic media and their non-wetting surface features of a series of fullerene-C60 derivatives bearing different numbers of long hydrocarbon chains (1–3) and semiperfluoro-alkyl tails (4) are investigated by means of a variety of techniques, including X-ray diffraction, differential scanning calorimetry, as well as spectroscopic and microscopic methods. All derivatives self-assemble into a bilayer arrangement with their fundamental structural subunit and lamellar distance ranging from 2.88 to 4.85 nm depending on the substituents. The hydrocarbon-C60 derivatives (1–3) provide well-defined three-dimensional microparticles having a nanoflaked outer surface morphology or microparticles composed of many plate-like units in 1,4-dioxane solution, both architectures enhancing the surface water-repellency. The microparticles with a nanoflaked-outer surface obtained from a C60 derivative with semiperfluoro-alkyl chains (4) in a diethoxyethane solution exhibit a surface water-repellency comparable to objects formed from the hydrocarbon-hybrid C60 derivatives. Taking into account the moderate hydrophobic nature of the C60 surface compared to the high hydrophobicity of the hydro- or fluoro-carbons, these results suggest that the C60 moieties are exposed to the outer surface in the supramolecular objects formed in polar solvent conditions and define their non-wetting properties.

Graphical abstract: Superstructures and superhydrophobic property in hierarchical organized architectures of fullerenes bearing long alkyl tails

Supplementary files

Article information


Submitted
13 Aug 2009
Accepted
02 Oct 2009
First published
04 Nov 2009

J. Mater. Chem., 2010,20, 1253-1260
Article type
Paper

Superstructures and superhydrophobic property in hierarchical organized architectures of fullerenes bearing long alkyl tails

T. Nakanishi, Y. Shen, J. Wang, H. Li, P. Fernandes, K. Yoshida, S. Yagai, M. Takeuchi, K. Ariga, D. G. Kurth and H. Möhwald, J. Mater. Chem., 2010, 20, 1253 DOI: 10.1039/B916612B

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