Solvent-free covalent functionalization of multi-walled carbon nanotubes and nanodiamond with diamines: Looking for cross-linking effects

Elena V. Basiuk*, Vladimir A. Basiuk, Víctor Meza-Laguna, Flavio F. Contreras-Torres, Melchor Martínez, Aarón Rojas-Aguilar, Marco Salerno, Guadalupe Zavala, Andrea Falqui, Rosaria Brescia

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

34 Scopus citations


The covalent functionalization of carbon nanomaterials with diamines is a way to enhance the mechanical strength of nanocomposites due to cross-linking effects, to form complex networks for nanotube-based electronic circuits, as well as is important for a number of biomedical applications. The main goal of the present work was to covalently functionalize pristine multi-walled carbon nanotubes and nanodiamond with three aliphatic diamines (1,8-diaminooctane, 1,10-diaminodecane and 1,12-diaminododecane) and one aromatic diamine (1,5-diaminonaphthalene), by employing a simple one-step solvent-free methodology, which is based on thermal instead of chemical activation. We looked for experimental evidences of cross-linking effects in the carbon nanomaterials synthesized by using solubility/dispersibility tests, atomic force microscopy, scanning and transmission electron microscopy, as well as Fourier-transform infrared spectroscopy and thermogravimetric analysis for additional characterization.

Original languageEnglish (US)
Pages (from-to)465-476
Number of pages12
JournalApplied Surface Science
StatePublished - Oct 15 2012
Externally publishedYes

Bibliographical note

Funding Information:
Financial support from the National Autonomous University of Mexico (grant DGAPA-IN100112 ), and from the National Council of Science and Technology of Mexico (CONACyT, grant 127299 ) is greatly appreciated. V. M.-L. and F. F. C.-T. acknowledge postdoctoral fellowship from the Institute of Science and Technology of the Federal District Government (ICyTDF “Becas 2011”), and M. M., postdoctoral fellowship from DGAPA UNAM. V. A. B. and E. V. B. thank DGAPA UNAM for supporting their sabbatical stay at the Italian Institute of Technology, as well as at the Universidad Autónoma del Estado de Morelos (V. A. B.). The authors are also thankful to M. Sc. Iván Puente-Lee for the acquisition of SEM images.


  • Cross-linking
  • Diamines
  • Functionalization
  • Multi-walled carbon nanotubes
  • Nanodiamond
  • Solvent-free

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces


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