Redox switching mechanism of polythiophenes

C. Visy, J. Lukkari, J. Kankare

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Spectroelectrochemical studies of the anodic and cathodic redox processes of polymers of 3′-substituted 2,2′:5′,2″-terthiophenes provide information on the redox switching mechanism of polythiophenes. A simple chemical model is to describe the neutral polymer as the mixture of two species n1 and n2, the effective conjugation length of n2 being twice that of n1. In the redox processes n1 and n2 are oxidized (or reduced) to mono and diions, respectively. Interconversion of n1 and n2 occurs through a dimerization/dissociation reaction. Direct evidence on the symmetry of the cathodic and anodic processes is obtained in the voltammetric and spectroscopic behaviour of poly[3′-(2-thienyl)-terthiophene].

Original languageEnglish
Pages (from-to)1620-1625
Number of pages6
JournalSynthetic Metals
Volume55
Issue number2 -3 pt 2
Publication statusPublished - Jan 1 1993

Fingerprint

Polymers
Dimerization
polymers
dimerization
conjugation
dissociation
symmetry
polythiophene
Oxidation-Reduction
alpha-terthienyl

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Polymers and Plastics

Cite this

Visy, C., Lukkari, J., & Kankare, J. (1993). Redox switching mechanism of polythiophenes. Synthetic Metals, 55(2 -3 pt 2), 1620-1625.

Redox switching mechanism of polythiophenes. / Visy, C.; Lukkari, J.; Kankare, J.

In: Synthetic Metals, Vol. 55, No. 2 -3 pt 2, 01.01.1993, p. 1620-1625.

Research output: Contribution to journalArticle

Visy, C, Lukkari, J & Kankare, J 1993, 'Redox switching mechanism of polythiophenes', Synthetic Metals, vol. 55, no. 2 -3 pt 2, pp. 1620-1625.
Visy C, Lukkari J, Kankare J. Redox switching mechanism of polythiophenes. Synthetic Metals. 1993 Jan 1;55(2 -3 pt 2):1620-1625.
Visy, C. ; Lukkari, J. ; Kankare, J. / Redox switching mechanism of polythiophenes. In: Synthetic Metals. 1993 ; Vol. 55, No. 2 -3 pt 2. pp. 1620-1625.
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