SYNTHESIS OF A NEW COMPOSITE BASED ON POLYANILINE
In this work, the authors describe the oxidative polymerization of aniline under the action of ammonium persulfate in the presence of sulfur particles obtained by different methods. It is known from literature that polyaniline (PANI) is one of the promising candidates from the family of conjugated polymers due to its electrical, electrochemical and optical properties, as well as due to its excellent stability in the environment. In addition, many works are devoted to the synthesis of PANI with various practically significant components. In this regard, in this work, a composite material based on electrically conductive PANI and sulfur particles was obtained, and its main physicochemical characteristics were studied. The main reason for the demand for such a composite material is the possibility of its use in lithium-sulfur batteries, which can prevent some of the problems associated with the use of a sulfur cathode, such as the electrically insulating nature of sulfur, the volumetric expansion of sulfur and the solubility of polysulfide particles. With the use of IR, UV-visible spectral methods and elemental analysis, it was found that application of nanosized sulfur in the polymerization of aniline does not lead to a significant change in the structure of the polymer. It is assumed that the production of such composites will solve some of the problems of lithium-sulfur batteries caused by the nature of sulfur.