Micro/ nanostructures of conducting polymers not only have the metallic conductivity

and reversible chemical and electrochemical properties and physical properties upon a novel doping/dedoping process

while processing qualities of conventional polymers

but they also have characteristics of nano-materials in general that lead to a large variety of applications especially in light-emitting and electronic devices

chemical sensors

separation membranes

and antistatic coatings. Micro/nanostructured polyaniline (PANI) has attracted agreat deal of interest in recent years because of its low cost

ease of preparation

unique chemical and physical properties controlled by the oxidation and protonation state

and excellent environmental stability. Therefore

the controlled synthesis

multifunctional properties created by a cooperation effect and applications of PANI micro/ nanostructures has become one of the hot topics in the area of nano-materials. In the review

the latest advances of synthesis

properties

and applications of the PANI micro/nanostucutures and related materials are presented based of our research achievements of polyaniline micro/nanostructures self-assembled by a template-free method.