Covalent sidewall functionalization of SWNTs by nucleophilic addition of lithium amides

 
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2008 (EN)
Covalent sidewall functionalization of SWNTs by nucleophilic addition of lithium amides (EN)

Syrgiannis, Z. (EN)

Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείας (EL)
Syrgiannis, Z. (EN)

The synthesis and characterization of sidewall-functionalized SWNT derivatives (nPrNH)(n)-SWNTs containing n-propylamine addends is reported. The nucleophilic addition of in situ generated lithium n-propylamide to the sidewall of SWNTs and the subsequent reoxidation of charged intermediates of the type (nPrNH)(n)-SWNTn- leads to carbon nanotube derivatives with covalently attached amino groups. Based on the reaction sequence, a homogeneous dispersion of the carbon nanotube material is achieved as a result of the electrostatic repulsion of negatively charged intermediates. The solubility of the resulting propylamine-functionalized (nPrNH)(n)-SWNT material in organic solvents is drastically increased. The functionalized tubes were characterized in detail by Raman spectroscopy, thermogravimetric analysis (TGA/MS), X-ray photoelectron spectroscopy (XPS) and UV/Vis/NIR spectroscopy. ((c) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008). (EN)

carbon (EN)

Πανεπιστήμιο Ιωαννίνων (EL)
University of Ioannina (EN)

European Journal of Organic Chemistry (EN)

2008

<Go to ISI>://000256330700005

Wiley-VCH Verlag (EN)



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