Based on the importance of gradient doping functional thin film to the industries,and the demand of improving the properties of kinds of new materials by doping,using one pulsed laser beam on two different targets alternately and getting the Mg/Ag doping thin film with the components proportion 0.

This article has described the structure,conductive theory and acid doping process of polyaniline and reviewed the development of acid doped polyniline at home and abroad,focusing on discussion of the synthesis and characterization measures,as well as the application and the development trend of polyaniline anticorrosion coatings in the future.