Polyaniline (PANI) protonated with camphorsulfonic acid (CSA) is one of the most promising
conductive polymers due to its relatively high crystallinity, high electrical conductivity, and the metallic
characteristics at high temperatures, i.e., a positive temperature coefficient of resistivity. The crystalline
structure of this polymer system is still not known in detail; however, significant developments in this
field have been achieved recently. In this work we present the results obtained for the series of 50 thin
film samples of the PANI/CSA system, prepared under various conditions. These films were subjected to
the X-ray diffraction study as well as electrical conductivity measurements. The results of this work
clearly show that the conductivity of the samples strongly depends both on their degree of crystallinity
and on the degree of order of the dopant anions. This ordering can be described quantitively by the relative
intensity of properly selected diffraction reflections. Besides, some important conclusions concerning the
anisotropy of the films subjected to the investigations may be drawn by comparison of the diffraction
patterns obtained in a transmission and reflection geometry of diffraction.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.