Aromaticity in Tropone-Containing Polythiophene

Tropone-Contg. thiophene monomers were prepd. and electrochem. polymd. under ambient conditions to form polymers. The polymers with various concns. of TFA were studied by CV, UV-vis-NIR, and cond. In conclusion, the cond. of tropone-contg. polythiophene can be switched reversibly by a protonation/deprotonation process. The cond. switching mechanism of this polymer is alternative to that of conventional proton dopable polymers such as polyaniline. [on SciFinder(R)]