Polypyrrole Doped with Alkyl Benzene Sulphonates.

Lasse Bay, Naja Mogensen, Steen Skaarup, Peter Sommer-Larsen, Keld West

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The properties of polypyrrole (PPy) are to a large extent determined by the condition of synthesis and especially by the counterion incorporated as dopant during synthesis. In this work, PPy doped with different alkyl benzenesulfonates are compared. The polymer films are prepared by constant current oxidation of pyrrole in aqueous solutions containing sodium benzenesulfonates having alkyl chain lengths between 1 and 22 carbon atoms. The doping levels of the polymers are evaluated both electrochemically and by means of a quartz crystal microbalance. The mechanical properties of freestanding films of the materials (tensile strength and Young's modulus) together with the reversible linear elongation between the oxidized and reduced states are determined. A maximum in linear elongation of 4% is found for p-(n-octyl)benzenesulfonate, and the highest electronic conductivity is found for p-(n-butyl)benzenesulfonate.
Original languageEnglish
JournalMacromolecules
Volume35
Issue number25
Pages (from-to)9345-9351
ISSN0024-9297
Publication statusPublished - 2002

Fingerprint Dive into the research topics of 'Polypyrrole Doped with Alkyl Benzene Sulphonates.'. Together they form a unique fingerprint.

Cite this