Covalent Sidewall Functionalization of Single Wall Carbon Nanotubes

Alkyllithium reagents may be used to attach alkyl groups to the sidewalls of fluoro nanotubes. Thermal gravimetric analysis combined with UV−vis−Nir spectroscopy has been used to provide a quantitative measure of the degree of functionalization. SWNTs prepared using the HiPco process exhibit a highe...

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Published in:Journal of the American Chemical Society 2003-03, Vol.125 (12), p.3617-3621
Main Authors: Saini, Rajesh K, Chiang, Ivana W, Peng, Haiqing, Smalley, R. E, Billups, W. E, Hauge, Robert H, Margrave, John L
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Language:English
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Chemistry
Colloidal state and disperse state
Exact sciences and technology
General and physical chemistry
Miscellaneous
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cited_by cdi_FETCH-LOGICAL-a445t-a02c653e7f11b54289f327d968b302f8393ffd43a61a4eba625fb4c4078705393
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container_issue 12
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creator Saini, Rajesh K
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description Alkyllithium reagents may be used to attach alkyl groups to the sidewalls of fluoro nanotubes. Thermal gravimetric analysis combined with UV−vis−Nir spectroscopy has been used to provide a quantitative measure of the degree of functionalization. SWNTs prepared using the HiPco process exhibit a higher degree of alkylation than SWNTs from the laser-oven method, indicating that the smaller diameter fluoro tubes are alkylated more readily. The spectral signature of the pristine SWNTs can be regenerated when the alkylated SWNTs are heated in Ar at 500 °C, demonstrating that dealkylation occurs at this temperature. TGA−MS analysis using a sample of n-butylated h-SWNTs showed that 1-butene and n-butane are formed during thermolysis.
doi_str_mv 10.1021/ja021167q
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subjects Chemistry
Colloidal state and disperse state
Exact sciences and technology
General and physical chemistry
Miscellaneous
title Covalent Sidewall Functionalization of Single Wall Carbon Nanotubes
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