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

Gerstel, Peter and Klumpp, Stefanie and Hennrich, Frank and Altintas, Ozcan and Eaton, Thomas R. and Mayor, Marcel and Barner-Kowollik, Christopher and Kappes, Manfred M.. (2012) Selective dispersion of single-walled carbon nanotubes via easily accessible conjugated click polymers. Polymer Chemistry, 3 (8). pp. 1966-1970.

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Official URL: http://edoc.unibas.ch/dok/A6031593

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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.
Faculties and Departments:05 Faculty of Science > Departement Chemie > Chemie > Molecular Devices and Materials (Mayor)
UniBasel Contributors:Mayor, Marcel and Eaton, Thomas R
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Royal Society of Chemistry
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:05 Apr 2017 10:33
Deposited On:08 Nov 2012 16:17

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