MODULATION OF ELECTRONIC-PROPERTIES OF FU NCTIONAL-GROUPS VIA CONDUCTIVE POLYMERS

In order to study the influence of the oxidation state of a conductive polymer on the electronic properties of its substituents, two monomer s have been polymerized electrochemically: one of them has an electrop olymerizable group conjugated with the substituent (N-phenylpyrrole) w hile the other one has an insulating link between the two functional g roups( N-benzylpyrrole). The films synthesized were analysed in situ b y FTIR after polarisation at different potentials. In the case of N-ph enylpyrrole, the intensities of the infrared absorptions characteristi c of the substituants depend on the potential applied. For the N-benzy lpyrrole, we don't observe any evolution of these vibrational bands wi th the potential applied.