It was found from the IR and UV-visible spectra, that the ion implantation into polymers results in the breakage of molecular chain, creation of double bonds and oxidation, which is connected with formation of carbonyl groups. The considerable increase of the electrical conductivity after the ion implantation was observed in all studied polymers. This increase of the conductivity was essentially caused by the increase of conjugated double bonds. In unpolar polymers, the increase of surface free energy resulting in enhancement of polarity of unpolar polymer was found.