Synthesize of Hydrochloric Acid Doped Polyaniline Nanoparticles Via Inverse Emulsion Polymerization

Despite the widespread applications of conductive polymers, their usage has been limited due to their poor processability. Emulsion polymerization to produce stable nanoparticles in water, solve to some extent the difficult process of these polymers. In this study, synthesis of polyaniline by inverse emulsion polymerization method along with chemical, physical and structural aspects is discussed. Synthesize of conductive polyaniline is carried out using oxidizing agent of benzoyl peroxide in a non-polar solvent, a functionalized protonic acid as dopant/ emulsifier and hydrochloric acid to improve the product conductivity. In order to optimize efficiency and conductivity of synthesized polyaniline, the effect of synthesis conditions such as reaction time, type and concentration of reactants were investigated. Synthesizing in optimum condition, minimum resistance value for a produced polyaniline was about 8.29 Ω. Beside conductivity, morphology and other properties of polyaniline has been investigated by FT-IR, SEM, DSC and DLS analysis.