RT Journal Article
T1 Modified SWCNTs with Amphoteric Redox and Solubilizing Properties
A1 Rodríguez Pérez, Laura
A1 García Cervilla, Raúl
A1 Herranz Astudillo, María Ángeles
A1 Martín León, Nazario
AB A complementary double‐covalent functionalization of single‐wall carbon nanotubes (SWCNTs) that involves both solubilizing ionic liquids and electroactive moieties is reported. Our strategy is a simple and efficient methodology based on the stepwise functionalization of the nanotube surface with two different organic moieties. In a first instance, oxidized SWCNTs are amidated with ionic liquid precursors, and further treated with butyl bromide to afford SWCNTs functionalized with 1‐butylimidazolium bromide. This approach allows tuneable polarity induced by anion exchange, which has an effect on the relative solubility of the modified SWCNTs in water. Subsequently, a 1,3‐dipolar cycloaddition reaction was performed to introduce the electron‐acceptor 11,11,12,12‐tetracyano‐9,10‐anthra‐quinodimethane (TCAQ) unit on the SWCNTs. Furthermore, to evaluate the influence of the functional group position, the TCAQ electroactive molecule was anchored through an esterification reaction onto previously oxidized SWCNTs, followed by the Tour reaction to introduce the ionic liquid functions. IR and Raman spectroscopies, thermogravimetric analysis (TGA), UV/Vis/NIR spectroscopy, transmission electron microscopy (TEM), and X‐ray photoelectron spectroscopy (XPS) were employed and clearly confirmed the double‐covalent functionalization of the SWCNTs.
PB Wiley
SN 0947-6539
YR 2014
FD 2014
LK https://hdl.handle.net/20.500.14352/93452
UL https://hdl.handle.net/20.500.14352/93452
LA eng
NO Rodríguez-Pérez, L., García, R., Herranz, M.Á. and Martín, N. (2014), Modified SWCNTs with Amphoteric Redox and Solubilizing Properties. Chem. Eur. J., 20: 7278-7286. https://doi.org/10.1002/chem.201400183
DS Docta Complutense
RD 11 ago 2024