Mass transport behavior of polypyrrole and poly(N-methylpyrrole) films in acetonitrile solutions

Hochun Lee, Haesik Yang, Juhyoun Kwak

Research output: Contribution to journalConference articlepeer-review

19 Scopus citations

Abstract

The mass transport mechanism of polypyrrole (PPy) and poly(N-methylpyrrole) (PMPy) films in an acetonitrile (AN) solution has been investigated with the cyclic electrochemical quartz crystal microbalance (EQCM) technique. Cations as well as anions take part in ion transport during the redox reaction of PPy films, and the break-in process occurs in the first negative scan. On the other hand, anion transport is dominant during the redox reaction of PMPy films, and no break-in process is observed. Solvent transport takes place in the same direction as cation transport in the case of PPy films, whereas it occurs in the opposite direction to anion transport in the case of PMPy films.

Original languageEnglish
Pages (from-to)104-109
Number of pages6
JournalJournal of Electroanalytical Chemistry
Volume468
Issue number1
DOIs
StatePublished - 17 Jun 1999
EventProceedings of the 1998 International Symposium on New Trends in Electroanalytical Chemistry - Seoul, S Kor
Duration: 10 Sep 199812 Sep 1998

Bibliographical note

Funding Information:
The authors are grateful to the Korea Advanced Institute of Science and Technology for financial support of this research.

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