Conducting Polymers (CPS) has been widely used in applied electronics. Now days, It is more important than semicon-ductor. Their conductivity lies between conductor and insulators. It is easiest to manufactured and cheapest in cost. Doping can easily change the electric conductivity of conducting polymers. Various polymers were used as conducting polymer but the polyanilineare compatiblewith environment as well as easily Produced in laboratories In the present study we discuss various technological applications such as corrosion protection sensors, electromechanical devices batteries. The major applications are printed circuit board manufacturing: final finishes, used in millions of m² every year, antistatic and ESD coatings, and corrosion protection. Polyaniline and its derivatives are also used as the precursor for the production of N-doped carbon materials through high-temperature heat treatment. Printed emeraldine polyaniline-based sensors have also gained much attention for widespread applications where devices are typically fabricated via screen, inkjet or aerosol jet printing.

Polyaniline, Polymer, Conducting Polymers (CPS), Sensors