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The oxidative polymerization of 3,6-phenylenediamino-2,5-dichlorobenzoquinone is studied for the first time, and the monomer is shown to exhibit a high reactivity in this process. The rate of its polymerization is much higher than that of aniline and 3,6-dianiline-2,5-dichlorobenzoquinone, and the induction period of oxidation is absent. The kinetic features of the oxidative polymerization of 3,6-phenylenediamino-2,5-dichlorobenzoquinone are investigated by measuring variation in the redox potential of the reaction mixture in the course of time. It is found that the kinetic curves of 3,6-phenylenediamino-2,5-dichlorobenzoquinone polymerization do not follow the S-shaped pattern typical of aniline polymerization. The mechanism of polymerization proceeding through a number of successive tautomeric rearrangements is advanced. The structure of the polymers is studied by FTIR and X-ray photoelectron spectroscopy. During the reaction of oxidative polymerization, cyclization processes occur to form phenazine and phenoxazine rings which give rise to a ladder polyconjugated polymer. The effect of reaction conditions, such as the concentration of reagents, their ratio, and the pH of the reaction medium, on the process is investigated.

The oxidative polymerization of 3,6-dianiline-2,5-dichlorobenzoquinone is studied for the first time and it is shown that its reactivity in oxidation processes is higher than that of aniline. The influence of concentration, reagent ratio, and the acidity and temperature of reaction solution on the oxidation reaction is investigated. The specific features of polymerization of 3,6-dianiline-2,5-dichlorobenzoquinone determined by the presence of a chloranil substituent at the nitrogen atom are revealed. Poly(3,6-dianiline-2,5-dichlorobenzoquinone) has a highly ordered supramolecular structure. The copolymerization of 3,6-dianiline-2,5-dichlorobenzoquinone with aniline is studied, and it is found that the reaction kinetics and the degree of copolymer oxidation are determined by aniline content in the monomer mixture.

The method of synthesizing nanocomposites based on multiwalled carbon nanotubes and a new polymer poly(3,6-bis(phenylamino)-2,5-dichlorobenzoquinone) containing polyaniline chains with electroactive substituents in the N-position is developed, and the electrochemical properties of the composites are studied. The in situ oxidative polymerization of N-substituted aniline performed in the presence of multiwalled carbon nanotubes makes it possible to design an organized, effective structure of the conducting composite material with enhanced electrochemical capacity and stable capacity parameters during long cycling in protic (1 mol/L H2SO4) and aprotic (1 mol/L LiClO4 in propylene carbonate) electrolytes.