ELECTROCHEMICAL PREPARATION AND ELECTROCHROMIC CHARACTERISTICS OF DITHIENOPYRROLE-DITHIENOTHIOPHENE, DITHIENOPYRROLE-THIONAPHTHENEINDOLE AND DITHIENOTHIOPHENE-THIONAPHTHENEINDOLE COPOLYMERS
G. Beggiato et al., ELECTROCHEMICAL PREPARATION AND ELECTROCHROMIC CHARACTERISTICS OF DITHIENOPYRROLE-DITHIENOTHIOPHENE, DITHIENOPYRROLE-THIONAPHTHENEINDOLE AND DITHIENOTHIOPHENE-THIONAPHTHENEINDOLE COPOLYMERS, Synthetic metals, 82(1), 1996, pp. 11-15
Poly(dithienopyrrole-dithienothiophene) copolymers can be obtained as
good conducting electrode films by electrolytic oxidation of acetonitr
ile solutions of monomer mixtures (electrolyte: tetrabutylammonium per
chlorate). They show good electrochromic characteristics. Films of pol
y(dithienopyrrole-thionaphtheneindole) and poly(dithienothiophene-thio
naphtheneindole) copolymers can be obtained in the same way as the pre
vious ones. They are adherent to the electrodes but are insulating and
non-electrochromic; the reason for this behaviour is proposed to be t
he break of conjugation in the polymeric chain due to the thionaphthen
eindole moiety.