ABOUT INFLUENCE OF ADVERSE REACTIONS UNDER CONDITIONS OF OXIDATIVE POLYMERIZATION OF PYRROL ON ELECTRICAL CONDUCTIVITY OF POLYPYRROL
Possible adverse reactions under the conditions of oxidative polymerization of pyrrole are considered, leading to the introduction of chemical defects that disrupt conjugation in the polypyrrole chain. It has been suggested that the activation energy of electrical conductivity should largely depend on the oxygen content in the polypyrrole chain and the position of the tautomeric equilibrium between the 3-hydroxylated residues of the polypyrrole chain and 3-carbonylated units. The fundamental possibility of developing a new theoretical approach for describing the temperature dependence of the electrical conductivity of polyconjugated systems is discussed. It is proposed that the theoretical approach be based on the distribution function of the number of defects over the activation energies of electrical conductivity. The relationship of chemical heterogeneity of chains and structural heterogeneity is emphasized.