Fe2+ ions were immobilized for the first time onto the films of model carboxyl-containing styrene copolymers supported on ozone-treated glass and fiberglass. All studied materials were proved to be polymer film components of Fenton catalyst initiating various radical reactions. The topography and chemical composition of initial surfaces and corresponding polymer surfaces with immobilized Fe2+ ions were studied by atomic force microscopy and X-ray photoelectron spectroscopy. Treated FeSO4 samples contain Fe2+ and Fe3+ ions being at equal concentrations.

SIR-3) vulcanizates in the atmosphere of ozone was studied by the method of optical microscopy. The average value of cracks surface was used as a measure of the degree of cracking. The growth of surface cracks involves two stages: a relatively slow in the beginning and faster, which is flowing at a constant rate. An empirical relationships that describe this process at different concentrations of ozone were proposed. A physical interpretation of the constants appearing in the empirical relationships was given.

This work deals with the fundamental problems of searching for and attaining synergetic effects manifested upon the mechanochemical pretreatment of plant material. Laws relating the intense physicomechanical effects on the raw material during its preprocessing to the deep hydrolytic reactions of hemicelluloses in the bulk of the structural units of plant biomass are established. It was shown earlier on models that mechanical effects are able to dramatically influence the reactivity of macromolecules by changing the hybridization of bonds. To discover similar regularities for plant structures, we performed experiments on the grinding of biomaterials. The best results were obtained in an extruder in the presence of catalysts for polysaccharide hydrolytic cleavage (acids, alkalies, and enzymes). Using birch wood, it was shown that the hydrolytic processes are accelerated by several orders of magnitude in the extruder force fields; the working temperature was considerably reduced (relative to thermohydrolysis) and neither furfural nor any other harmful side product was detected. Our results suggest that the use of mechanochemical methods allows processing time to be reduced by an order and of magnitude along with the formation of side products, testifying to the utility of this technique's practical application.

The main dynamic characteristics of biochemical methanol formation by the oxidation of methane using a biocatalyst were studied. The biocatalyst is based on cells of bacteria Methylosinus sporium B-2121, both suspended in a medium and immobilized in the poly(vinyl alcohol) cryogel. The change in the methane concentration and the biocatalyst amount affects the productivity of the system, the maximal concentration of methanol in the cultural liquid, and the rate of methanol accumulation. The most part of the dynamic characteristics are described by extremal curves. The experimental conditions were optimized prior to experiments. The use of the immobilized biocatalyst makes it possible to enhance the productivity of the process more than fivefold compared to that of the free cells and to achieve the highest methanol concentration in the medium: 62±2 mg L−1.

Ozone uptake kinetics, strain relaxation, and spin probe rotation frequencies in crosslinked polydienes of different chemical origins were studied. The important role of molecular dynamics in relative ozone resistance of structurally different elastomers was revealed. It was shown that the difference in ozone resistance of elastomers is due to differences in the rates of escape of ozonide degradation products determined by the molecular mobility of macromolecules, rather than in the rates of ozone addition across C=C bonds.

The rates of ozone absorption during bubbling of an ozone-oxygen mixture through a sample of lake water with high contents of humic and fulvic acids were measured. Three characteristic sections were distinguished on the kinetic curve. The corresponding effective rate constants of ozone reactions with the substrate are 5.1 - 104, 1.4 - 102, and 7.6 L mol−1 s−1. Structures of the reacting fragments and their contents in the system were suggested.

The kinetics of crack growth in vulcanizates of synthetic isoprene rubber SKI-3 in ozone atmosphere was studied by optical microscopy. The mean value of crack surface was used as a measure of degree of cracking. The growth of crack surface exhibits two stages: a relatively slow one in the beginning, and a more rapid one proceeding at constant rate. Empirical relations are presented describing this process at various ozone concentrations. A physical interpretation of the constants appearing in the empirical relations is presented.