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2007-01-01 - Article/Dans un journal avec peer-review - Anglais - 3 page(s)

Ruelle B., Peeterbroeck Sophie , Gouttebaron R., Godfroid Thomas, Monteverde F., Alexandre M., Hecq Michel, Dubois Philippe , "Functionalization of carbon nanotubes by atomic nitrogen formed in a microwave plasma Ar+N2" in Journal of Materials Chemistry, 17, 2, 157-159

  • Edition : Royal Society of Chemistry, Cambridge (United Kingdom)
  • Codes CREF : Chimie macromoléculaire (DI1315), Catalyses hétérogène et homogène (DI1334), Chimie des solides (DI1316), Physique des plasmas (DI1233)
  • Unités de recherche UMONS : Matériaux Polymères et Composites (S816), Chimie des interactions plasma-surface (S882)
  • Instituts UMONS : Institut de Recherche en Science et Ingénierie des Matériaux (Matériaux)
Texte intégral :

Abstract(s) :

(Anglais) Multi-walled carbon nanotubes (MWNTs) are placed under atomic nitrogen flow formed through an Ar + N2 microwave plasma in order to functionalize covalently their side walls with nitrogen-containing groups. The MWNT surface analyzed by X-ray photoelectron spectroscopy shows the presence of amides, oximes and mainly amine and nitrile functions grafted in this way. In order to highlight the actual location of the amine functions grafted on MWNTs, they were considered as initiation species in ring-opening polymerization of £-caprolactone using triethylaluminium as activator. The so-generated poly(e-caprolactone) chains remain grafted on the MWNTs via amide bonds and form polyester islets along the nanotubes surface. TEM images of these MWNT surfaces grafted with poly(e-caprolactone) show a good amino-sidewall distribution. This work demonstrates the side-wall amino-functionalization of carbon nanotubes readily achieved by microwave plasma with the possibility to reach within a short time period very high contents in nitrogen-based functions (~10 at.%).

Notes :
  • (Anglais) Publié en ligne le 1 novembre 2006
Identifiants :
  • DOI : 10.1039/b613581c