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Issue 8, 2012
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Selective dispersion of single-walled carbon nanotubes via easily accessible conjugated click polymers

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Abstract

To date synthetic methods to selectively produce specific (n, m) single-walled carbon nanotubes (SWCNTs) are not available. Therefore, post-processing of SWCNTs including solubilization and sorting by metallicity, length, diameter, chirality or (n, m) is necessary for further applications. To reach the goal of sorting SWCNTs, we have synthesized various conjugated polymers consisting of alternating 9,9-dialkyl fluorene and 1,2,3-triazole units via copper catalyzed alkyneazide conjugation chemistry. Their ability to selectively wrap specific (n, m) SWCNTs is investigated towards HiPco SWCNT raw materials which contain more than 40 (n, m) species and are found to be comparable to fluorene based triazole free polymers, which are typically prepared via Suzuki-type polymerization. However, the herein reported triazole-linked click polymers are significantly simpler to prepare than their Suzuki-analogs. Fluorescence and UV/Vis NIR spectroscopy were employed to analyze the SWCNTs–polymer suspensions and demonstrate their selectivity for dispersing SWCNTs.

Graphical abstract: Selective dispersion of single-walled carbon nanotubes via easily accessible conjugated click polymers

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Publication details

The article was received on 19 Mar 2012, accepted on 17 Apr 2012 and first published on 10 May 2012


Article type: Communication
DOI: 10.1039/C2PY20161E
Citation: Polym. Chem., 2012,3, 1966-1970
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    Selective dispersion of single-walled carbon nanotubes via easily accessible conjugated click polymers

    P. Gerstel, S. Klumpp, F. Hennrich, O. Altintas, T. R. Eaton, M. Mayor, C. Barner-Kowollik and M. M. Kappes, Polym. Chem., 2012, 3, 1966
    DOI: 10.1039/C2PY20161E

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