In this study, imine bond coupled pyrrole–carbazole–pyrrole monomers were synthesized in four steps and then directly polymerized onto ITO/glass surface via potentiodynamic electrochemical process. Electrochemical and optical bad gap of these monomers and polymers were calculated by using cyclic voltammetry and UV–Vis absorption spectroscopy. Conductivity of the polymers with different alkyl side-chain was determined by using four ...