Deposition of ultrathin coatings of polypyrrole and poly(3,4-ethylenedioxythiophene) onto electrospun nanofibers using the vapour-phase polymerization method

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DOIResolve DOI: http://doi.org/10.1021/cm902986g
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TypeArticle
Journal titleChemistry of Materials
Volume22
Issue8
Pages24742480; # of pages: 7
SubjectUltrathin coatings; Electrospun nanofibers; Vapor-phase polymerization
AbstractElectrospun polyacrylonitrile (PAN) nanofibers were successfully coated with polypyrrole (PPy) or poly(3,4-ethylenedioxythiophene) PEDOT layers. To obtain ultrathin coatings on highly porous nanofibrous webs, we adapted a two-step vapor-phase coating process usually used to produce ultrathin films. Ferric tosylate (FeTos) was chosen as the oxidant, because of its solvent-free templating effect that produces highly ordered polymer coatings with improved electronic properties. The concentration of the oxidant solution was found to be a key parameter for the preservation of the open porosity in the nanofibrous mats. Coating thicknesses varied from 5 to 12 nm depending on the polymer and oxidant concentrations. The coatings were strongly attached to thePANnanofibers and presented some degree of crystallinity and high conductivities. PEDOT-coated nanofibers displayed good electrochemical properties without the need of an additional current collector, making them excellent candidates for the fabrication of flexible electronic devices.
Publication date
LanguageEnglish
AffiliationNRC Industrial Materials Institute (IMI-IMI); National Research Council Canada
Peer reviewedYes
NRC number52431
NPARC number17101713
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Record identifier3f559676-c86b-47b9-8d20-0a264fd91a26
Record created2011-03-07
Record modified2016-05-09
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