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

Gerstel, P., Klumpp, S., Hennrich, F., Altintas, O., Eaton, T. R., Mayor, M., Barner-Kowollik, C., & Kappes, M. M. (2012) Selective dispersion of single-walled carbon nanotubes via easily accessible conjugated click polymers. Polymer Chemistry, 3(8).

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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 alkyne-azide 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. © 2012 The Royal Society of Chemistry.

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ID Code: 99308
Item Type: Journal Article
Refereed: Yes
Additional Information: Cited By :16
Export Date: 5 September 2016
Correspondence Address: Barner-Kowollik, C.; Preparative Macromolecular Chemistry, Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT), 76128 Karlsruhe, Germany; email:
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Keywords: Conjugation chemistry, Copper catalyzed, Fluorenes, Free polymers, Metallicities, NIR spectroscopy, Post processing, Synthetic methods, Acetylene, Dispersions, Near infrared spectroscopy, Nitrogen compounds, Single-walled carbon nanotubes (SWCN), Stereochemistry, Conjugated polymers
DOI: 10.1039/c2py20161e
ISSN: 17599954
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Institutes > Institute for Future Environments
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 22 Sep 2016 04:50
Last Modified: 04 Oct 2016 04:32

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