Study of reactions of cyclotrimerization of organic compounds terminated with C-N-multiple bonds: isocyanates, cyanate esters, carbodiimides and their interactions with reactive monomers, such as epoxies, glycols, amines, hydrazides, hydrazones on model, oligomeric and polymer systems. Synthesis of triazinecontaining polymers, copolymers, hybrid and interpenetrating polymer networks (IPNs). Chemical and physical modification of crosslinked polymers.  Kinetics of synthesis and structure-property relationships for polymer materials obtained. Characterization of phase structure of polymer blends and IPNs. Functionalization and compatibilization of components of polymer blends and IPNs, grafted semi-IPNs and linked IPNs. Thermoplastic elastomers, dynamic vulcanization of rubber phase in thermoplastic matrices. Recycling of thermoplastic and elastomeric wastes, including polyolefins and ground tire rubber. Kinetics of synthesis and structure-property relationships for polymer materials obtained, glass transition behavior and morphology. Rheological measurements, chemical analysis, infra-red spectroscopy, NMR, mass-spectrometry, X-ray analysis, DSC, DMA, TGA, DRS, TSDC techniques. Polymer processing, filming from solutions and melt, compression molding, injection molding, mechanical testing of polymer materials. Polymer composites with dispersed and fibrous fillers. Adhesion properties of polymers. Adhesives, coatings, sealants for electronic, aerospace and automotive industries. Nanocomposites, polymer nanocomposites of thermosets, thermoplastics, IPNs, filled with montmorillonite, carbon nanotubes, POSS. Porous films, nanoporous materials, membranes. Effect of irradiation on polymers structure and properties. Chemical and radiation-chemical modification of asphalt concrete, cement, concrete.