ofHP

Here, propagation of the HP decomposition reaction chains proceeds in the same way as in the previously considered si-scheme through the stages of intermediate formation of phenol a-complex with peroxy1 and formation of quinoid a1coxy1 (possessing constants k1 and k2 , respectively). Contrary to the si-scheme, the vi-scheme displays the chain termination performed on iono!. Its rate with the constant k3 is proportional to the rate of HP decomposition chain propagation, defined by the constant k 1• The existence of this proportion is responsible for ionol providing a catalytic development of the chain HP decomposition, abruptly decreasing peroxy1 concentration and reducing the rate of the chain PP autoxidation in the propagating steps to a negligibly low value:

p. + 02 -+ POO •

Regeneration of the initial iono1 (and tri-tert-buty1pheno1) in the present process should be performed from the product of its transformation, quino1ic alcohol, in the thermo1fluctuation excitation of v-micropores. These reactions proceed as "cryptoradica1", or "intracage", ones, resulting in dissociation of quino1ic alcohol and further reactions of macromolecule dehydrogenation (18):

O>OH (JOH)E kl:~~;) {r +HO· +PH~~ +H20 +P• rIH+H20+P= Simultaneous partial loss of phenol should be performed in parallel reactions disproportioning, which proceed in the presence of iono1 with formation of methylene quinone and its further transformations.