Reversible dispersion of single-walled carbon nanotubes based on a CO2-responsive dispersant

A CO(2)-responsive dispersant, N,N-dimethyl-N'-(pyren-1-ylmethyl) acetimidamidinium (PyAH(+)), which bears both a pyrene moiety and an amidinium cation, has been successfully synthesized. Through strong π-π interaction between the pyrene moiety and single-walled carbon nanotubes (SWNTs), we hav...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 26(2010), 22 vom: 16. Nov., Seite 16667-71
1. Verfasser: Ding, Yan (VerfasserIn)
Weitere Verfasser: Chen, Senlin, Xu, Huaping, Wang, Zhiqiang, Zhang, Xi, Ngo, Thien Huynh, Smet, Mario
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2010
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
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520 |a A CO(2)-responsive dispersant, N,N-dimethyl-N'-(pyren-1-ylmethyl) acetimidamidinium (PyAH(+)), which bears both a pyrene moiety and an amidinium cation, has been successfully synthesized. Through strong π-π interaction between the pyrene moiety and single-walled carbon nanotubes (SWNTs), we have demonstrated that PyAH(+) can be modified onto SWNT surfaces to promote the dispersion of SWNTs in water. Furthermore, taking advantage of gas triggered interconversions between the amidinium cation and amidine, reversible control on the solubility of SWNTs has been achieved simply through alternated bubbling of CO(2) and Ar. This work has demonstrated a new method for controlled dispersion and aggregation of SWNTs, and it may contribute to the development of gas responsive carbon materials 
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700 1 |a Chen, Senlin  |e verfasserin  |4 aut 
700 1 |a Xu, Huaping  |e verfasserin  |4 aut 
700 1 |a Wang, Zhiqiang  |e verfasserin  |4 aut 
700 1 |a Zhang, Xi  |e verfasserin  |4 aut 
700 1 |a Ngo, Thien Huynh  |e verfasserin  |4 aut 
700 1 |a Smet, Mario  |e verfasserin  |4 aut 
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