The diffusion cell to the chromatograph Cvet-800 for determining permeability of polymeric materials was optimized. Studied gas permeability to oxygen and carbon dioxide polymer-polymer composites based on poly(ethylene terephthalate) and poly(butylene terephthalate). Identified the optimum formulations that combine high barrier properties and a low content of acetaldehyde.

The rheology of solutions of N -vinylpyrrolidone and methyl methacrylate copolymers it was studied in the temperature range 20-35ºC in dimethylformamide. Influence of temperature, molecular mass and composition of the copolymers to their interaction with the solvent, it was shown. This influence expressed through the parameters of characteristic viscosity, Huggins constant, mean square distance between the ends of the macromolecular chains quantitatively.

Upon interaction of formaldehyde with mixtures of phenol, phthalidecontaining monophenol and phthalimidinecontaining bisphenols in acide media new coolygophenolformaldehyde novolacs and crosslinked copolymers have been prepared. Their properties have been studied.

Examined the classification of mechanisms of stabilization of poly(vinyl) chloride, primary and secondary stabilization mechanisms using basic classes of stabilizers, as well as auxiliary compounds.

The problem of the isothermal flat cavity filling by a non-Newtonian fluid with simultaneous impregnation of a porous layer is considered. The flow in a cavity is described by the non-inertial Navier-Stokes equations, in a porous layer by the Darcy law, and in the region adjacent to the boundary of the liquid - porous layer by the Brinkman equation. During the molding, the processes of gelation or solidification of the binder can take place in the liquid. Viscosity is considered dependent on the degree of chemical reaction.

In article deformation behavior in polyethylenes of trademarked pipes is analyzed when testing on instrumented dart impact tester, in comparison with stretching by the tensile testing machine. The technique of carrying out dart impact test of dumb-bell specimens is described, relative deformation, tension influenced on sample is calculated, and the analysis of behavior of destruction of materials is carried out.

The effect of filler activity, and structural parameters of the composite fibrous material obtained by introducing a sorption-active filler into various grain sizes and the surface of the polymer fibers during the spinning of the aerodynamic polymer solution on its physico-chemical and mechanical properties.

The effect of the nanotubes and modifiers on the modulus of elasticity and yield strength of high-density polyethylene is investigated. We found that a very small concentration of multi-walled nanotubes (0.1 wt. %) leads to a significant (two-fold) increase in the modulus of elasticity and a certain increase in yield strength. This grows is associated with the experimentally found increase in the degree of crystallinity of polyethylene, when filling mentioned nanoparticles takes place.

Possibility of the development fire-retardants composition are shown In article on base departure to chemical industry. Some concrete ways of the practical application new fire-retardants composition are shown.

Comparative studies of thermomechanical and strength properties of polymer and film materials on polybenzimidazoles basis have been conducted. Polymer materials under investigation are more thermo - and fire resistant and possess high physico-chemical indicators in combination with chemical stability under various aggressive conditions as compared to industrial counterparts.

Compositions for making prototypes in children’s creative works have been developed on the base of vinyl acetate, low vinyl acetate/ ethylene copolymer, styrene/butadiene-1,3 thermoplastic elastomer and 3,4-isoprene rubber. A wide range of tests has been performed to evidence the full conformity of the composition materials with the requirements of RFP and hygienics.

With use of a polyvinylchloride film (PVC) with various barrier characteristics and the vanadium-bearing silica gel, changing the coloring at contact with water vapors, the possibility of creation of indicator system on their basis for control of periods of storage food, pharmaceutical and other type of production is shown. Depending on thickness of a polymeric film and humidity of environment at the set temperature, it is possible to regulate over a wide range the time of change and achievement of equilibrium coloring of an inorganic component. The received results are the basis for creation of indicator test samples for the purpose of visual express control of production storage periods.

The technology of a polycondensation way of combination of the main components which feature is the combination of process of synthesis of a phenolformaldehyde oligomer to reinforcing by its basalt thread is developed. Advantage of the developed technology is increase of strength and physical and chemical characteristics of bazaltoplastik.

The aim of this study was to show that because of the pre-radiation and photo degradation of polyolefins in the subsequent secondary thermal oxidative destruction exposed to the formation of macro radicals anymore, resulting in occurrence of certain conditions for the chemical bond between the polyolefin and wood lignin.

The effect of multiple extrusions on structure and properties of polypropylene (PP) and PP/organoclay composites was investigated. It has been shown that multiple extrusions lead to degradation of the PP matrix by chain-breaking mechanism without significant oxidation. Addition of organoclay and maleated polypropylene (MAPP) can accelerate the degradation of the PP at the test conditions of multiple extrusions.