Аннотация:The syntheses of the polymeric products were carried out by using the ionic liquid ([Py BuCl]1(AlCl3)1.5) at the controlled potentials. Benzene, biphenyl, terphenyls were used as substrates. The Pt-plate and glass carbon plate were chosen as the working electrodes. The experimental conditions were found from the preliminary voltammetry studies. The characterization of reaction products was performed using FTIR spectroscopy. The degree of the polymerization was found up to 70. It was shown that the degree of polymerization increases in parallel with the electrode potential for benzene. The presented data are in agreement with the previous results [1]. It was found that the degrees of polymerization were constant with the electrode potential for biphenyl, terphenyls.