PS-based polymers have been synthesized containing heteroatomatic cationic groupings including organometal fragments. Cyclic voltammetry and ESR spectroscopy have shown that the reduction of these compounds leads to the formation of polycation-radicals in which there is exchange interaction between the unpaired electrons. The electrochemical and spectroscopic properties of the compounds obtained are compared with their monomeric analogues.

By successive condensations based on pyrocatechol and acetone some oligopyrocatechols were prepared, and these were oxidized into the corresponding quinones. The ability of the oligoquinones to form paramagnetic metal complexes was investigated by the ESR. In the ESR spectra the structure of the aromatic ligands is not manifested to an appreciable extent. The electrochemical oxidation of sterically hindered oligopyrocatechols leads to the formation of the poly(radical cations), in the deprotonation of which the corresponding quinones are formed.