Role of conducting polymers in corrosion protection

Corrosion is an environmental evil related to metal and their alloys. Researchers trying their best to overcome it with traditional and new techniques. Recently Conducting polymers (CPs) such as polyaniline (PANI), polypyrrole (PPy) etc. are used for the corrosion protection of metals and metal alloys. Various mechanisms have been suggested to explain anticorrosion properties of CPs. These include anodic protection, controlled inhibitor release as well as barrier protection mechanisms. The presenting review is mainly focused on Different approaches that have been developed for the use of CPs in protective coatings