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Mass-spectrometric study of single-walled carbon nanotubes modified by aliphatic amines
The gas-phase derivatization procedure was employed for direct (i.e., without chemical activation of terminal carboxylic groups) amidization of oxidized single-walled carbon nanotubes (SWNTs) with simple aliphatic amines. The procedure includes treatment of SWNTs with amine vapors under reduced pres...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Інститут хімії поверхні ім. О.О. Чуйка НАН України
2002
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| Series: | Поверхность |
| Subjects: | |
| Online Access: | http://dspace.nbuv.gov.ua/handle/123456789/126367 |
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| Summary: | The gas-phase derivatization procedure was employed for direct (i.e., without chemical activation of terminal carboxylic groups) amidization of oxidized single-walled carbon nanotubes (SWNTs) with simple aliphatic amines. The procedure includes treatment of SWNTs with amine vapors under reduced pressure and temperature of 160-170ºC. Applicability of temperature-programmed desorption mass spectrometry for chemical characterization of the derivatized SWNTs was analyzed. Heating of the amine-treated SWNTs at temperature >200ºC causes cleavage of alkenes from the amine residues: nonene and pentene are formed in the case of nonylamine and dipentylamine, respectively. |
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