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SPECTROELECTROCHEMICAL STUDY OF THE ANION EFFECT ON THE TRANSIENT REDOX BEHAVIOR OF POLY(N-METHYLPYRROLE) IN ANHYDROUS ACETONITRILE
Tekijät: VISY C, LUKKARI J, PAJUNEN T, KANKARE J
Kustantaja: ELSEVIER SCIENCE SA LAUSANNE
Julkaisuvuosi: 1990
Lehti:: Synthetic Metals
Tietokannassa oleva lehden nimi: SYNTHETIC METALS
Lehden akronyymi: SYNTHETIC MET
Vuosikerta: 39
Numero: 1
Aloitussivu: 61
Lopetussivu: 67
Sivujen määrä: 7
ISSN: 0379-6779
DOI: https://doi.org/10.1016/0379-6779(90)90198-T
Tiivistelmä
Polymerization of N-methylpyrrole and the transient redox behaviour of the polymeric film were studied by spectroelectrochemical methods in the presence of BF4-, ClO4- and PF6- in an acetonitrile solution containing 10 +/- 1 ppm of water. The doping levels and the rate of absorbance changes at different potentials were determined and compared with those obtained for polypyrrole. In poly(N-methylpyrrole) BF4- behaves in a similar way to ClO4-, in contrast with polypyrrole. This is interpreted as evidence that the BF4- -polymer interaction in polypyrrole occurs via the N-H bonds which are absent in poly(N-methylpyrrole).
Polymerization of N-methylpyrrole and the transient redox behaviour of the polymeric film were studied by spectroelectrochemical methods in the presence of BF4-, ClO4- and PF6- in an acetonitrile solution containing 10 +/- 1 ppm of water. The doping levels and the rate of absorbance changes at different potentials were determined and compared with those obtained for polypyrrole. In poly(N-methylpyrrole) BF4- behaves in a similar way to ClO4-, in contrast with polypyrrole. This is interpreted as evidence that the BF4- -polymer interaction in polypyrrole occurs via the N-H bonds which are absent in poly(N-methylpyrrole).
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