Functionalization of Multi-Walled Carbon Nanotubes by Stereoselective Nucleophilic Substitution on PVC Articles uri icon

authors

  • SALAVAGIONE, J. HORACIO
  • MARTINEZ, GERARDO
  • BALLESTEROS PEREZ, CARMEN INES

publication date

  • December 2010

start page

  • 9754

end page

  • 9760

issue

  • 23

volume

  • 43

International Standard Serial Number (ISSN)

  • 0024-9297

Electronic International Standard Serial Number (EISSN)

  • 1520-5835

abstract

  • In this article, multiwalled carbon nanotubes (MWNT) soluble in common organic solvents are prepared. The solubility is conferred to the MWNTs by covalent attaching of appropriately modified poly(vinyl
    chloride)(PVC). The nucleophilic substitution of PVC with potassium
    4-hydroxythiophenolate is carefully studied. It proceeds through a
    stereoselective mechanism. The subsequent esterification reaction of the
    hydroxyl pendant groups in the modified PVC (mPVC) with carboxylic
    acids created in MWNT is reported. The intermediates and final products
    are characterized by FTIR, 1H and 13C NMR, and
    Raman spectroscopy. The thermal stability as well as the molecular
    dynamics of the MWNT-modified PVC (MWNT-mPVC) are studied. The potential
    applications of the PVC-functionalized carbon nanotubes and the
    demonstrated functionalization strategy are discussed.