Functionalization of multiwalled carbon nanotubes and related polyimide/carbon nanotubes composites

Abstract

A low molecular weight tree-type polyimide was used to modify the surface of multiwalled carbon nanotubes. The modified carbon nanotubes exhibited excellent dispersion in organic solvent; and the polyimide/carbon nanotubes composite film basic on such carbon nanotubes shows enlarged combination property compared with the composite film from acid-carbon nanotubes. Meanwhile, an electric conductivity was introduced to the composite film, and the thermal properties have also been developed. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.