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Since commercial airliners are struck by lightning quite often during their operation, there is a need to elaborate new materials for lightning strike protection combining high conductivities with light weight. Conducting polymers are thought to be one of the most promising compounds that can be used for this application. From a variety of commercially available conducting polymers, polyaniline, PANI, fits criteria of chemical stability, appropriate conductivity and density the best. The aim of this study is to find the optimal conditions of the process of polyaniline doping with camphor sulphonic acid, CSA, to obtain the material that can be used as a conducting filler for lightning strike protection coatings. We present the comparison of physicochemical properties of polyaniline films doped in the presence of m-cresol, N-methyl-2-pyrolidone and dimethylsulfoxide, respectively. The morphology of obtained PANI/CSA films is …