Synthesis and properties of nano-polyaniline films doped with camphor sulfonic acid.

Polyaniline (PANI) is an important conductive polymer with good stability in the air and high conductivity. It can be used in the field of sensors, cells and capacitors. In this paper, PANI is prepared in the (NH4)2S2O8/HCI solution system. We used XRD, SEM and other relevant means to characterize the morphology and property of PANI-CSA, and we applied four-point probe measurement and FTIR to study the optical and electrical properties. We also analyzed the possible impact to infrared reflectance of various doping concentrations and the mechanism. The results show that the PANI-CSA film has the best performance and the highest infrared reflectivity when the doping ratio is 2:2.