The paper presents a comparative study of the influence of various flame retardants on the process of thermo-oxidative decomposition of ethylene vinyl acetate. The degree of influence of different groups of flame retardants on the thermal stability of the polymer composition, on the processes of ethylene vinyl acetate degradation at different stages in a wide temperature range is described. It was found that the flame retardants used tend to increase the thermal stability of the polymer composition, shift the intervals of polymer decomposition to a higher temperature region, while reducing the value of mass loss. Flame retardants form refractory and highly condensed phases that affect the process of outgassing during decomposition of polymer compositions.

The current state of Materials Science in the field of obtaining functional polymer composite materials with a wide range of mechanical and physical properties is analyzed. The modification of polymers by introducing inert and reactive additives into the epoxy matrix are considered. The use of industrial and agricultural waste as modifiers is discussed as one of the directions of import replacement and developing the principles of “green” chemistry. Special attention is paid to the prospects of using modifying components obtained by thermochemical processing of vegetable wastes.

The thermal properties of phenol-formaldehyde oligomers functionalized with benzylamine were investigated. The dependence of thermal characteristics on the composition of oligomers, as well as their conversion products, has been studied. Thermogravimetric and differential-thermal studies were carried out both in an inert medium –  in a nitrogen atmosphere, and in an air medium. The appropriate conclusions are made.

The relative activity of copper-amine catalytic complexes in the oxidative dehydropolycondensation of 2,6-dimethylphenol has been compared. The influence of the composition and concentration of the catalytic complex on the polycondensation reaction and the molecular weight of the resulting poly-2,6-dimethyl-1,4-phenylene oxide has been investigated. The influence of the nature of solvents on the molecular weight index of the formed polymer is considered.

A technique has been developed for solving the inverse problem of forming a molecular weight distribution and assessing the kinetic heterogeneity of catalysts using heuristic optimization methods. Since the number of active polymerization centers, which determines the number of required parameters of the system, is unknown, a genetic algorithm was chosen to ensure a guaranteed solution to the problem. The main steps of implementing an algorithm are presented, which allows, based on the single assumption that the distribution on each type of active centers is described by one of the model distributions, to solve automatically the problem of selecting the number of active centers and the proportions of each type. The developed method was tested in the study of the kinetic heterogeneity of a catalytic system based on gadolinium chloride solvate in the production of 1,4-cis-polyisoprene.

The glass transition temperature for silicone rubbers of the SKT, SKTV and SKTV-1 brands is determined by the temperature position of the maximum current density of thermally stimulated depolarization. The synthetic network method is used to analyze experimental data. Calculation of thermodynamic functions based on the results of experiments confirms the association between the polarization state of SCTV samples and first-order phase transitions of the “melt–crystal” type in a large class of crystallizing polymers.

The results of microscopic studies of the homogeneity of premix compositions from a mixture of epoxy resin and APS-94 hardener, differing in the method of dispersing the hardener, are presented. Rheological and mechanical tests of VSK-14-1 adhesive binders made using premixes of various homogeneities, were carried out, and the rheokinetics of curing of KMKS adhesive prepregs based on the above mentioned binders was studied. It has been established that the appearance of inclusions in the form of white spots in KMKS prepregs is associated with the presence in the premix of undissolved particles of the APS-94 hardener with a dispersion of 100 to 300 microns. A criterion for the degree of homogeneity of the premix was experimentally determined, ensuring the production of high-quality adhesive binder and prepreg based on it: the dispersion of particles of the APS-94 hardener should not exceed 80 microns.

Objectives: investigation of the lightning resistance of a PCM based on a functional coating with an integrated metal knitted-soldered mesh at various current parameters of high-voltage discharges simulating lightning current.

Methods: GTM-4 test facility providing the values of normalized lightning current discharge in accordance with the requirements of KT-23.0 KT-160G for lightning hazard zone 1A.

Results: It was established that on the studied samples, when exposed to a simulated lightning discharge in accordance with the combination of components A, B, C (lightning hazardous zone 1A), areas of damage are formed, characterized by fragmentation, damage to fibers, burns of the PCM and grounding devices.

Conclusions: the lightning resistance of a PCM based on a functional coating with an integrated metal knitted-soldered mesh has been studied at various current parameters of high-voltage discharges simulating lightning current.

Additive methods of producing polymer products are developing and being introduced into industry at a high rate. At the same time, the requirements for products obtained using these technologies are increasing, which, in turn, leads to modernization of equipment and development of methods and devices for their implementation. The paper considers various designs of devices for the realization of photopolymer printing methods and their development. 3D printers for realization of photopolymer printing technologies such as SLA, DLP, SGC, LOM, LCD, PolyJet, CLIP, DLC and CAL and their features are presented. Generalization of information from scientometric databases allowed to carry out foresight in the field of photopolymerization technologies and equipment modernization for technology transition to the next stage of development of volumetric axial lithography, supplemented with the use of photoinhibition elements of resin, mainly dual-wave photopolymerization.

The paper presents the results of modification of aqueous dispersions of polyetherurethanes of the Aquapol® brand with polymerpolymer complexes based on polyacrylic acid and polyvinyl alcohol to obtain fibrous-porous composite materials such as artificial and synthetic leather.