Published in Russian Journal of Applied Chemistry
AbstractThe idea of creating replacement for damaged or diseased tissue, which will mimic the physiological conditions and simultaneously promote regeneration by patients’ own cells, has been a major challenge in the biomedicine for more than a decade. Therefore, nanofibers are a promising solution to address these challenges. Nanofiber technology ...
Published in Russian Journal of Applied Chemistry
AbstractThe results of experimental studies of the electroflotation extraction of sparingly soluble Al3+ compounds from aqueous solutions in the presence of surfactants of various nature and alkaline earth metal ions (Mg2+, Ca2+, Ba2+) are reported. It was found that the Mg2+, Ca2+, Ba2+ ions in a solution at a concentration of 0.5 g L–1 reduces th...
Published in Russian Journal of Applied Chemistry
AbstractIn this article we report preparation, physico-chemical and mechanical characterization of poly (vinyl acetate) (PAVc) films resulting from the copolymerization of vinyl acetate (VAc) with two acrylate monomers, butyl acrylate (BuA) and 2‐ethyl hexyl acrylate (2-EHA) via emulsion polymerization method. Vinyl acetate (VAc) was used as princi...
Published in Russian Journal of Applied Chemistry
AbstractThe most optimal membrane samples were synthesized, tested, and selected and a comprehensive study of the transport and analytical parameters of membrane materials for potentiometric sensors based on chalcogenide glasses in the TlI–Ag2Se–As2Se3 system was conducted. Thallium-selective sensor samples with membranes of the composition: 20 mol...
Published in Russian Journal of Applied Chemistry
AbstractStable selenium nanoparticles were synthesized in a sodium carboxymethylcellulose (Na-CMC) solution with a degree of substitution of 0.85 and an average molar weight of 250 000. The shape and size of selenium nanoparticles were determined by dynamic light scattering and UV spectroscopy. It was found that the nanoparticles coated with Na-CMC...
Published in Russian Journal of Applied Chemistry
AbstractThe present study focuses on the improvement of desulfurization rate in the oxidative desulfurization using hierarchical CoAPO-5 molecular sieve as a catalyst by response surface method. Firstly, the catalytic properties of microporous and hierarchical CoAPO-5 were compared, and hierarchical CoAPO-5 with better catalytic performance was sel...
Published in Russian Journal of Applied Chemistry
AbstractA new extrudable and paste explosive based on cyclotrimethylenetrinitramine (RDX) explosive and a medical grade and uncured room temperature vulcanizing silicone rubber is developed and its rheological properties are experimentally studied in accelerated aging process at temperatures of 50, 60, and 70°C. Viscosity and shear stress of the un...
Published in Russian Journal of Applied Chemistry
AbstractIn this work, CuO thin films were deposited by successive ionic layer adsorption and reaction (SILAR) method at room temperature. The synthesis parameters of the method were changed to examine the details of the production method. Our main goal was the optimization of the deposited CuO thin films in terms of their structural, optical and el...
Published in Russian Journal of Applied Chemistry
AbstractThe effect that calcination of an alumina–chromia catalyst containing 13 wt % Cr with additions of Na+ and Zr4+ in an air–water vapor atmosphere (from 0 to 80 vol % water vapor) at 750°С and a pressure of 1 bar exerts on the physicochemical properties of the catalyst and its activity in n-butane dehydrogenation was studied. The steam treatm...
Published in Russian Journal of Applied Chemistry
AbstractIn this study, non-flammable insulator materials with high thermal resistance have been produced for vessel doors. Silica-based polymers were used as core materials. Four different synthesis routes are procured and their morphologies, thermal performances, and flammability properties are compared. Thermal properties of the synthesized silic...
