In this works, new electroactive vinyl polymers containing conjugated segment of aniline pentamer (ANP) side chains were successful synthesized. First of all, Oligoanilines were prepared by chemical oxidative coupling reaction, followed by reacting with glycidyl methacrylate to give macromonomer. Vinyl polymers were prepared by free radical polymerization with benzoyl peroxide. They were characterized by IR, LC-MS, 1H-NMR spectroscopic techniques. The molecular weights of the polymers were measured by GPC, affored polymer with good polydispersity(PD) and molecular. The chemical oxidation process of vinyl polymers were studied by UV–Vis spectra. The electrochemical characterization of vinyl polymers by cyclic voltammetry indicated that the redox behaviors were similar to the corresponding oligoanilines.It should be noted that the corrosion protection properties of electroactive vinyl polymers were found to be much better than their counterpart (i.e. non-electroactive vinyl polymer, PGMA) based on a series of electrochemical measurements of corrosion potential, polarization resistance, corrosion current and impedance spectroscopy in 5 wt% aqueous NaCl electrolyte. Spectroelectrochemical studies on polymers were carried out in 0.5 M H2SO4 for different potential using ITO as the working electrode. Thermal characteristics of vinyl polymers EB powder have been investigated by thermogravimetric analysis (TGA), differential scanning calorimetry (DSC)