Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 30, Issue 6, Pages 453-458Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.200800623
Keywords
conducting polymers; electrospinning; fibers; infrared spectroscopy; polyamides
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Funding
- Italian Interuniversity Consortium on Materials Science and Technology (INSTM) through the PRISMA Project
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Conductive Polyamide 6 (PA-6) nanofibers were prepared by making a conductive polypyrrole coating obtained by a polymerization of pyrrole molecules directly on the fiber surface. A solution of PA-6 added with ferric chloride in formic acid has been electrospun and the fibers obtained showed an average diameter of 260 nm with a smooth surface. The fibers have been then exposed to pyrrole vapours and a compact coating of polypyrrole was formed on the fiber surface. The growth of the coating was monitored by measuring the increment of the fiber diameter and by FT-IR spectroscopy. The same technique was used to study the interaction between the ferric chloride and the polyamide chains. The polypyrrole coating on the fibers turned out to be conductive with a pure resistive characteristic and the stability of the conductivity was evaluated in air at room temperature.
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