Journal article

Dynamic electrical properties of polymer-carbon nanotube composites: Enhancement through covalent bonding

SA Curran, DH Zhang, WT Wondmagegn, AV Ellis, J Cech, S Roth, DL Carroll

Journal of Materials Research | CAMBRIDGE UNIV PRESS | Published : 2006

Abstract

Composite formation between carbon nanotubes and polymers can dramatically enhance the electrical and thermal properties of the combined materials. We have prepared a composite from polystyrene and multi-walled carbon nanotubes (MWCNT) and, unlike traditional techniques of composite formation, we chose to polymerize styrene from the surface of dithiocarboxylic ester-functionalized MWCNNs to fabricate a unique composite material, a new technique dubbed "gRAFT" polymerization. The thermal stability of the polymer matrix in the covalently linked MWCNT-polystyrene composite is significantly enhanced, as demonstrated by a 15 °C increase of the decomposition temperature than that of the noncovalen..

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University of Melbourne Researchers