The influence of polymerization rate on conductivity and crystallinity of electropolymerized polypyrrole

P. Dyreklev, M. Granström, O. Inganäs, L.M.W.K. Gunaratne, G.K.R. Senadeera, Steen Skaarup, Keld West

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

We report studies on electronic conductivity and crystallinity in electropolymerized polypyrrole. Different growth rates during electropolymerization strongly influence and determine structural and electronic properties. Polymer films grown using low current density show higher electronic conductivity and increased crystallinity. The conductivity is also less temperature activated compared to that of the polymer grown at higher rate. X-ray diffractograms are compared to simulated diffraction data and the results are discussed in terms of increased order in the material. This may result from a different coupling route in the polymerization, induced by the lower current density. Copyright (C) 1996 Elsevier Science Ltd.
Original languageEnglish
JournalPolymer
Volume37
Issue number13
Pages (from-to)2609-2613
ISSN0032-3861
DOIs
Publication statusPublished - 1996

Keywords

  • Polypyrrole
  • Conductivity
  • X-ray diffraction

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