The influence of binary combination of EPDM and ethylene- a-olefinic elastomers with different moleculare masse and viscosity of the Mooney on the increase of impact strength and others mechanical properties of toughened composites of PP, obtained during reaction-extrusion process in the melt of PP, was investigated.

We have investigated the processes of imidization, kinetics of imidization and modified polyimide materials. It was studied optimum regime of imidization, kinetics of polyamide acid imidization. It was founded the effect of the modifier on the properties of polyimide films.

Heterophase polymerization of styrene was carried out and polystyrene nanocomposite microspheres with controlled content of ZnO nanoparticles were synthesized. The colloid-chemical properties of the resulting polymer suspensions were studied. It was shown that the particles have a "core-shell" structure with a ZnO content of 30%.

A method of receiving fire resistant phosphorus nitrogen-containing organosiloxane coatings on the surface of cellulosic fibers is developed. It is shown that such a three-layered coating provides an increasing of oxygen index from 20 to 47%.

The results of investigations on the preparation of novolacs harded with minimal isolation or without isolation of low molecular weight substances and crosslinked homo- and copolymers based on them are described.

Calculation scheme is suggested for estimating the flow temperature T_f of the system containing the polymer and nanoparticles. The chemical structure of the polymers and nanoparticles, the intermolecular interaction between the polymer and nanoparticles at their modification by polar groups, the van der Waals volume and molecular weight of the polymer, the concentration and form of the nanoparticles has been taken into account. The dependencies of T_f on the nanoparticle radius, their concentrations, number of polar groups grafted to the nanoparticle surface are plotted. The design scheme is computerized and included as a separate option into computer programs "Cascade" (INEOS RAS).

Presents a theoretical of dependence impact strength from relaxation characteristics of polymers and polymer materials. The above formulas for calculation of impact strength on temperature before and after the introduction of fillers (fiberglass).

In the paper it has been considered mathematical modelling of alcoholysis process of secondary polyethylene terephthalate. It has been exposed the influence of properties of hydroxylcontaining polyestrepolyols by the factors such as hydroxyl, acid, ester number and average-number molecular weight through the mathematical equation of process. It has been shown the adequacy model and results, the deviation of indicators on mathematical model does not exceed for 5 % from practical values.

A comparison of polymers of higher alkyl acrylates and composition based on hydrophilically modified ammonium containing polyalkyl acrylate as additives for improving low temperature properties of gas condensate and waxy crude oil mixtures was performed. The additives do not influence the cloud point and crystallization temperature of the mixtures, however, significantly reduce their pour point, low temperature dynamic viscosity and the formation of asphaltene-resin-paraffin deposits (ARPD). Hydrophilically modified ammonium-containing polyalkyl acrylate was shown to be the most effective ARPD inhibitor.

The paper discusses the rheological behavior of the pro-oxidants, which made on the basis of serial brands of polyethylene with the content of 5,0; 10,0 and 15,0 mas. % of iron stearate. Technological bases when receiving are created and processings of pro-oxidizers in the high-speed equipment taking into account their physicomechanical indicators.

The aim of this study was to research conditions of formation of the macro radicals, chemical bonding between polyolefins and wood’s lignin with thermo-oxidative effects on polyolefins, wood particles and their the binary mixtures.

Characteristic features of rotational molding of thermoplastics were examined. The processes of heat transfer were analysed. The influence of particle size of the polymer on the distribution of the processed material inside the rotational mold, the duration of the transition of the polymer from the solid to the plastic state were studied. The dependence of the thickness tolerances of the product of linear polyethylene from the speed of rotation of the rotational mold was studied.

The paper studied the process of obtaining superabsorbent polymers based on polyacrylic acid and linear polymers with controlled to absorb and retain the ability to create materials for medical and sanitary purposes.

In this paper we developed time-temperature curing thick composite materials based on aramid fibers provides monolithic composite structure, the uniformity of distribution of the main components in its entirety and, consequently, high quality products winding.

The influence of weight ratio of organosilicon and cationic surfactants of different nature on the colloid-chemical properties and the stability of the artificial latexes of butyl rubber and diene-styrene thermoplastic elastomer was investigated in this work.