Electrochemical and optoelectronic properties of terthiophene- and bithiophene-based polybenzofulvene derivatives.

ABSTRACT: The electrochemical behavior of some polybenzofulvene derivatives bearing bithiophene (BT) or terthiophene (TT) side chains was investigated by cyclic voltammetry. Very interestingly, the presence of unsubstituted terminal thiophene moieties allowed poly-6-BT-BF3k and poly-6-TT-BF3k to be cross-linked by electrochemical procedures. Conductive films were obtained by electrodeposition from solutions of these polymers onto electrode surfaces through the formation of covalent cross-linking due to dimerization (i.e. electrochemical oxidation) of the BT or TT side chains. The films showed electrochromic features and switched from yellow-orange (neutral) to green (positively charged) by switching the potential, and were stable to tenths of cycles, without degradation in the wet state in th

SUBMITTER: Fabrizi de Biani F 

PROVIDER: S-EPMC9078966 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature