Solvent-free functionalization of carbon nanotube buckypaper with amines
Por:
Basiuk E.V., Ramírez-Calera I.J., Meza-Laguna V., Abarca-Morales E., Pérez-Rey L.A., Re M., Prete P., Lovergine N., Álvarez-Zauco E., Basiuk V.A.
Publicada:
1 dic 2015
Categoría:
Surfaces, Coatings and Films
Resumen:
We demonstrate the possibility of fast and efficient solvent-free functionalization of buckypaper (BP) mats prefabricated from oxidized multiwalled carbon nanotubes (MWCNTs-ox), by using three representative amines of different structure: one monofunctional aliphatic amine, octadecylamine (ODA), one monofunctional aromatic amine, 1-aminopyrene (AP), and one aromatic diamine, 1,5-diaminonaphthalene (DAN). The functionalization procedure, which relies on the formation of amide bonds with carboxylic groups of MWCNTs-ox, is performed at 150-180 °C under reduced pressure and takes about 4 h including auxiliary degassing. The amine-treated BP samples (BP-ODA, BP-AP and BP-DAN, respectively) were characterized by means of a variety of analytical techniques such as Fourier-transform infrared and Raman spectroscopy, thermogravimetric and differential thermal analysis, scanning and transmission electron microscopy, scanning helium ion microscopy, and atomic force microscopy. The highest amine content was found for BP-ODA, and the lowest one was observed for BP-DAN, with a possible contribution of non-covalently bonded amine molecules in all three cases. Despite of some differences in spectral and morphological characteristics for amine-functionalized BP samples, they have in common a dramatically increased stability in water as compared to pristine BP and, on the other hand, a relatively invariable electrical conductivity. © 2015 Elsevier B.V.
Filiaciones:
Basiuk E.V.:
Univ Nacl Autonoma Mexico, Ctr Ciencias Aplicadas & Desarrollo Tecnol, Mexico City 04510, DF, Mexico
Ramírez-Calera I.J.:
Univ Nacl Autonoma Mexico, Ctr Ciencias Aplicadas & Desarrollo Tecnol, Mexico City 04510, DF, Mexico
Meza-Laguna V.:
Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, Mexico City 04510, DF, Mexico
Abarca-Morales E.:
Univ Nacl Autonoma Mexico, Ctr Ciencias Aplicadas & Desarrollo Tecnol, Mexico City 04510, DF, Mexico
Pérez-Rey L.A.:
Univ Nacl Autonoma Mexico, Ctr Ciencias Aplicadas & Desarrollo Tecnol, Mexico City 04510, DF, Mexico
Re M.:
Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Technical Unit for Material Technologies, Brindisi, 72100, Italy
Prete P.:
Istituto per la Microelettronica e Microsistemi, Via Monteroni, Lecce, 73100, Italy
Lovergine N.:
Dipartimento di Ingegneria dell'Innovazione, Università Del Salento, S.P. 6 Lecce-Monteroni, Lecce, I-73100, Italy
Álvarez-Zauco E.:
Univ Nacl Autonoma Mexico, Fac Ciencias, Mexico City 04510, DF, Mexico
Basiuk V.A.:
Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, Mexico City 04510, DF, Mexico
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