Diblock copolymer stabilization of multi-wall carbon nanotubes in organic solvents and their use in composites
SLUZARENKO, Nicolas
Laboratoire de Chimie des polymères organiques [LCPO]
Centre de recherches Paul Pascal [CRPP]
Laboratoire de Chimie des polymères organiques [LCPO]
Centre de recherches Paul Pascal [CRPP]
HEURTEFEU, Bertrand
Laboratoire de Chimie des polymères organiques [LCPO]
Centre de recherches Paul Pascal [CRPP]
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Laboratoire de Chimie des polymères organiques [LCPO]
Centre de recherches Paul Pascal [CRPP]
SLUZARENKO, Nicolas
Laboratoire de Chimie des polymères organiques [LCPO]
Centre de recherches Paul Pascal [CRPP]
Laboratoire de Chimie des polymères organiques [LCPO]
Centre de recherches Paul Pascal [CRPP]
HEURTEFEU, Bertrand
Laboratoire de Chimie des polymères organiques [LCPO]
Centre de recherches Paul Pascal [CRPP]
< Reduce
Laboratoire de Chimie des polymères organiques [LCPO]
Centre de recherches Paul Pascal [CRPP]
Language
en
Article de revue
This item was published in
Carbon. 2006, vol. 44, p. p. 3207-3212
Elsevier
English Abstract
A versatile method for the preparation of dispersed nanotubes using polystyrene-b-polyisoprene diblock copolymers in different selective organic solvents is presented. Stable dispersions have been obtained in polar (DMF) ...Read more >
A versatile method for the preparation of dispersed nanotubes using polystyrene-b-polyisoprene diblock copolymers in different selective organic solvents is presented. Stable dispersions have been obtained in polar (DMF) and apolar (heptane) media depending on the selectivity of the diblock copolymers. They have been characterized by means of optical microscopy, TEM imaging and dynamic light scattering, showing the first demonstration of multiwall carbon nanotubes (MWCNTs) solutions with in situ characterization of diblock copolymer stabilization. The most effectively stabilized dispersions have been used to make nanotube/polystyrene composites. We find that the coating of the nanotubes by the diblock polymer does not prevent electrical transport, so that the system can exhibit a relatively high surface conductivity above the percolation threshold. The low percolation threshold experimentally determined is presumably due to weak attractive interactions between the nanotubes as the composites are dried.Read less <
Spanish Keywords
Carbon nanotubes
Carbon fibers
Mechanical properties
Electrical properties
Scanning electron microscopy
Origin
Hal imported