An effective technique is proposed in this study to synthesize a novel polymer, based on the copolymerization of pyrrole with a synthesized monomer (phenylazepane-2-one), combining the character of both conductivity and solubility. The reaction was cationically catalyzed, using an acid exchanged clay (Maghnite-H+) as an ecological catalyst. The reaction synthesis of poly[(phenylazepane-2-one)-co-(pyrrole)] abbreviated poly(PAP) has been carried out in dichloromethane. The reaction yield was 85% at a temperature of 25 degrees C for 4 h using 4% of catalyst. Chemical structures have been characterized by proton and carbon nuclear magnetic resonance (H-1-NMR and C-13-NMR), ultraviolet/visible spectroscopy (UV-Vis) and Fourier transform infrared spectroscopy (FT-IR). Thermal properties have been evaluated by differential scanning calorimetry and thermal gravimetric analysis, showing the thermal stability of the poly(PAP) up to 333 degrees C. Solubility tests confirmed the solubility of poly(PAP) in various common solvents. The indirect band-gap was found 1.22 eV using Tauc's formula. The semiconductor behavior poly(PAP) has been proven by the evolution of ac electrical conductivity and dielectric properties as a function of frequency and temperature. These new properties allow direct application of poly(PAP) on all desired surfaces rather than conventional materials. [GRAPHICS] .