FECL3-DOPING OF A POLYMER CONTAINING THIOPHENE HEXAMERS IN THE MAIN-CHAIN

A soluble polymer with a limited pi-conjugation length, containing thi ophene hexamers in the main chain; was prepared by reductive condensat ion. The obtained polymer was soluble in common organic solvents and c ast; to films. The films doped with FeCl3 showed considerable conducti vities, 0.4-0.2 S/cm. The absorption spectra of the FeCl3-doped films indicated the predominant presence of one-electron oxidized species (p olarons) and the instability of plural-electron oxidized species on th e polymer chain in the atmosphere.