Published in Russian Journal of Applied Chemistry
The 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 is an ex...
Published in Russian Journal of Applied Chemistry
AbstractAn effect of hydrogen additions to the initial mixture on the parameters of the oxidative cracking of propane at atmospheric pressure, temperatures of 500–750°C, reaction time of 2 s, and С3H8/О2 initial ratio ~2 was experimentally investigated. It was shown that small amounts of hydrogen promote the process due to the formation of addition...
Published in Russian Journal of Applied Chemistry
Abstractcis-1,4-Polyisoprene was prepared under conditions of the industrial production process using small high-performance diffuser–confuser tubular turbulent apparatuses in the stage of formation of titanium, neodymium, and gadolinium Ziegler–Natta catalysts, and characteristics of the synthesized rubber were determined. The catalytic systems ca...
Published in Russian Journal of Applied Chemistry
AbstractOrgano-inorganic composite materials based on films of polytetrafluoroethylene and tetrafluoroethylene–hexafluoropropylene copolymer, modified with vanadium- and phosphorus-containing functional groups, were synthesized. The modified fluoropolymer films, especially those modified with phosphorus-containing groups, exhibit increased hydrophi...
Published in Russian Journal of Applied Chemistry
AbstractA comparative analysis of the life cycle of powertrains based on internal combustion engines powered by diesel fuel and natural gas, on batteries, and on hydrogen fuel cells was made. The inventory information on the stages of the life cycle of powertrains was collected, including production of structural materials and assembling of powertr...
Published in Russian Journal of Applied Chemistry
AbstractThe effect of hybrid filling of polyethylene terephthalate with short glass fibers in amount from 15 to 60 wt % and multi-walled carbon nanotubes in amount of 0.5 and 1.6 wt % on the structure, static and dynamic mechanical properties of composites produced by blending in a melt by the method of reactive extrusion was studied. It was shown ...
Published in Russian Journal of Applied Chemistry
AbstractA technique was tested for structuring a finely dispersed bulk ferrosilicoaluminum powder by cryogels based on an aqueous poly(vinyl alcohol) solution to prepare products of a desired shape using porous nitride-containing ceramics as a structural material. The physical and mechanical properties of the produced samples were investigated. It ...
Published in Russian Journal of Applied Chemistry
AbstractComposite filamentary hydrogels based on cross-linked polyacrylamide, filled with TiO2 particles, were synthesized. The degree of crosslinking of the hydrogel matrix was set by the molar ratio of the cross-linking agent and monomer: 1 : 50, 1 : 100, 1 : 200, or 1 : 300. The diffusion of Methyl Orange dye in the polymer matrix as a function ...
Published in Russian Journal of Applied Chemistry
AbstractSorption of aluminum(III) and iron(III) from their individual solutions and of iron(III) impurity from Al2(SO4)3 solutions on macroporous resins, Puromet MTS9560 phosphonic acid cation exchanger and Puromet MTS9300 and Puromet S991 iminodiacetate ion exchangers, was studied. All the three resins show higher affinity for iron(III) than for a...
Published in Russian Journal of Applied Chemistry
AbstractThe suspension polymerization in octafluorobutane, initiated by Ziegler–Natta catalyst system, has been used to synthesize ultra-high molecular weight poly(1-hexene), poly(1-octene), and poly(1-decene) of regular structure with high yields. This technique makes it possible to successfully carry out reactions at close to room temperature, fo...
