Conductive polypyrrole nanofibers via electrospinning: Electrical and morphological properties

Ioannis S. Chronakis, Sven Grapenson, Alexandra Jakob

Research output: Contribution to journalJournal articleResearchpeer-review


Conductive polypyrrole nanofibers with diameters in the range of about 70-300 nm were obtained using electrospinning processes. The conductive nanofibers had well-defined morphology and physical stability. Two methods were employed. Electrospun nanofibers were prepared from a solution mixture of polypyrrole (PPy), and poly(ethylene oxide) (PEO) acted as a carrier in order to improve PPy processability. Both the electrical conductivity and the average diameter of PPy nanofibers call be controlled with the ratio of PPy[PEO content. In addition, pure (without carrier) polypyrrole nanofibers were also able to be formed by electrospinning organic solvent soluble polypyrrole, [(PPy3)(+) (DEHS)(-)](x), prepared using the functional doping agent di(2-ethylhexyl) sulfosuccinate sodium salt (NaDEHS) [Jang KS, Lee H, Moon B. Synth Met 2004; 143:289-94. 124]]. Electrospun blends of sulfonic acid (SO3H)-bearing water soluble polypyrrole, [PPy(SO3H)-DEHS], with PEO acting as a carrier, are also reported. The factors that facilitate the formation of electrical conduction paths through the electrospun nanofiber segments are discussed. (c) 2006 Elsevier Ltd. All rights reserved.
Original languageEnglish
Issue number5
Pages (from-to)1597-1603
Publication statusPublished - 2006
Externally publishedYes

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