Journal
MACROMOLECULES
Volume 41, Issue 24, Pages 9869-9874Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ma802147s
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Funding
- Natural Science and Engineering Research Council (NSERC) of Canada
- Ontario Centres of Excellence (OCE-EMK)
- Canada Foundation for Innovation
- Ontario Innovation Trust (OIT)
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The interaction between single-walled carbon nanotubes and two anionic conjugated polyelectrolytes, poly[2,5-bis(3-sulfonatopropoxy)-1,4-phenylene-alt-1,4-phenylene) sodium salt and poly[2,5-bis(3-sulfonatopropoxy)-1,4-ethynylphenylene-alt-1,4-ethynylphenylene] sodium salt, was investigated. It was found that the supramolecular poly met-nanotube assembly occurred efficiently and produced stable complexes that could be purified from excess free polymer in solution. These complexes were characterized using absorption spectroscopy, fluorescence spectroscopy, Raman spectroscopy, and electron microscopy. It was further found that patterning of these polymer-nanotube complexes could be accomplished by utilizing electrostatic attraction with a prepatterned, cationically charged surface. Patterned features were found to be electrically conducting with a measured sheet resistance value of 0.68 +/- 0.01 M Omega for features having a thickness on the order of several nanometers.
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