Chernovets The optical parameters of this orthosilicate and results of introduction of europium ions into its composition to create a phosphor were studied. Heteronuclear coordination compounds of copper and cobalt in urethane-yielding reactions by R.
Davletbaev; I. Davletbaeva; R. Deberdeev; I. Zaripov; M. Kayumov; O. Gumerova Heteronuclear coordination compounds capable of catalyzing the low-temperature dissociation of urethane groups were synthesized on the basis of copper and cobalt chlorides. The study was performed with an urethane prepolymer produced from oligoester diol and 2,4-toluylene diisocyanate.
It was found that the dissociation of urethane groups in the prepolymer is accompanied by formation of carbodiimides and release of 2,4-toluylene diisocyanate. As a result of the subsequent redox interaction, Cu II ions are mostly converted to Cu I , and the involvement of isocyanate groups in the para-position into the reaction processes leads to formation of azoaromatic derivatives.
It is shown that their coordination binding by Co II ions strongly affects both the supramolecular organization of polyurethanes and a set of their physicomechanical properties. Synthesis of Fe-Al-W dispersed polymetallic system in aqueous solutions and its physicochemical properties by A. Dresvyannikov; M.
Kolpakov Possibility of obtaining Fe-Al-W polymetallic systems by contact exchange in chloride-containing aqueous solution was demonstrated. The electrochemical and thermal dependences describing the process occurring on aluminum microparticles were determined.
It is demonstrated that the systems obtained are precursors of intermetallides, e. Study of the structural and mechanical properties of biotechnical system of porous titanium nikelide-bone tissue by E. Shukeilo; V. Kormilitsyn; G. Plotkin; Yu. Shukeilo The stress-strain state of an implant of a porous titanium nickelide was studied in its placement instead of damaged bone tissue.
A value of open porosity of a titanium nickelide sample was determined by the data obtained in processing of SEM images as well as by the liquid saturation method. The applicability of the technique for assessing the open porosity according to scanning electron microscopy was demonstrated. The physico-mechanical parameters of composites of titanium nickelide-connective bone tissue and titanium nickelide-spongy bone tissue were determined.
In a SolidWorks software package a volume model of an implant-bone system was developed, and calculations of stresses and shears were carried out. It was found that upon bone tissue ingrowth into the porous structure of TiNi a stress distribution in the composite and bone tissue is leveled. Synthesis of sodium allyl sulfonate in an aqueous medium by micellar catalysis with methoxy polyethylene glycol methacrylates by D.
Orekhov; O. Kazantsev; A. Sivokhin; T. Khokhlova Micellar catalysis with various polyoxyethylated compounds was used to synthesize sodium allyl sulfonate by the reaction of allyl chloride with an aqueous solution of sodium sulfite.
It was shown that methoxy polyethylene glycol methacrylates and water soluble polymers based on these compounds are surfactants and can be used to intensify the synthesis of sodium allyl sulfonate, which is of interest in the case of its subsequent application to obtain copolymers with methoxy polyethylene glycol methacrylates. Vorobyev; L. Saurambaeva; T. Mikhailovskaya; O. Yugay; A. Serebryanskaya; I. Shlygina It was found that, on passing from V2O5 to double-component vanadium-containing catalysts, the proton affinity of active oxygen bonded to vanadium, calculated by the quantum-chemical method, grows simultaneously with the increase in the activity of the catalysts in the oxidation reaction.
Liquid-phase oxidation of isopropyl-meta-xylene to tertiary hydroperoxide by A. Frolov; E. Kurganova; G. Fundamental aspects and the mechanism of the reaction of liquid-phase oxidation of isopropyl-meta-xylene to a tertiary hydroperoxide by atmospheric oxygen, initiated by isopropylbenzene hydroperoxide or catalyzed by N-hydroxyphthalimide were studied.
It was found that using N-hydroxyphthalimide in the course of oxidation of isopropyl-meta-xylene makes it possible to raise, compared with the initiator isopropylbenzene hydroperoxide , the oxidation rate and the conversion of the hydrocarbon by a factor of 2—2. Intensification of cyclohexanone purification stage from impurities in caprolactam production using phase transfer catalysis by E.
Martynenko; I. Glazko; S. Levanova; Yu. Portnova Impurities in the oxidate, which was produced in the oxidation of cyclohexane in an industrial environment, were analyzed and identified. The process of purifying the oxidate from the impurities by hydrolysis in the presence of phase transfer catalysts and without them was studied. Boron carbide powder B4C was added into phenol-formaldehyde PF resin to increase the high temperatural bond strength of PF resin. The thermal modification mechanism was investigated by scanning electron microscopy, energy dispersive X-Ray, and pyrolysis gas chromatography spectrum coupled with a mass spectrum.
The results indicate that B4C can increase the heat resistance of PF resin efficiently. B4C can not only seize some active groups of the resin matrix including phenolic hydroxyl and methylol, but also can hold the main components of some volatiles such as CO, H2O, phenol, and its derivations in the resin matrix by chemical reactions.
At the same time, the reaction product boron oxide closes and mends the microcracks for its satisfactory wettability and adhesive capacity. In consequence, the efficient components escaping from the resin matrix can be sharply reduced. A relative intact skeleton of the resin is obtained, and its bond strength and thermal stability are remarkably elevated.
It studies the influence of APS and HCl concentration on the surface electrical resistance and the absorption loss of electromagnetic shielding fabric. Flocculation kinetics and densification of the sediment of model disperse systems in the presence of polymer-inorganic hybrids by V.
Proskurina; R. Faizova; Yu. Galyametdnov Kinetics of hindered settling processes of new model dispersion systems, suspensions of titanium dioxide of anatase modification and magnesium hydroxide upon introduction of a macromolecular cationic copolymer of acrylamide and polymer-inorganic hybrids, was studied.
The influence exerted by the concentration of polymeric additives on their flocculating activity was analyzed and the degrees of adsorption were calculated. A correlation was found between the process parameters in the stages of flocculation and sediment densification. Sorption extraction of palladium II with modified polysiloxane by L. Neudachina; A. Golub; A. Kholmogorova Sorption of palladium II from model solutions with polysiloxanes modified with amine and thiourea groups was stidied and it was found that the maximum sorption on aminopropyl polysiloxane is shifted slightly to alkaline region compared with a sulfur-containing sorbent.
First time an effect of a series of external factors on a sorption kinetics of palladium with polysiloxanes was researched, diffusion coefficients of sorbate ions were calculated, and evaluation of their dependence on an initial concentration of metal, a grain diameter of the sorbent, and a temperature of sorption environment was carried out. It is shown that quantitative desorption of palladium from thiocarbamoylated polysiloxane is achieved by double treating the sorbent with hydrochloric acid solution of thiourea at high temperature.
Electrolytic synthesis of FeS2 for thin-layer lithium battery by R. Apostolova; V. Sadovoi; R. Peskov; E. Various aspects of synthesis were studied. Thin-film Fe-sulfide synthesis products were tested in a prototype lithium battery and also in a lithium-ion system.
Sokolov; I. Murin; N. Kazantsev, A. Sivokhin, T. Khokhlova, , published in Zhurnal Prikladnoi Khimii, , Vol. This is a preview of subscription content, log in to check access. Preview Unable to display preview. Download preview PDF. References 1. Kolganova, D. Google Scholar 2. Google Scholar 3. US Patent A1, Google Scholar 4. Yamada, K. CrossRef Google Scholar 5.
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Kutsenko; I. Viscosity characteristics of dilute and moderately concentrated solutions of blends of methyl cellulose, hydroxyethyl cellulose, and carboxymethyl cellulose with Zosterin were studied. Shlygina
Boron carbide powder B4C was added into phenol-formaldehyde PF resin to increase the high temperatural bond strength of PF resin. Frost- and heat-resistant composite materials based on polyurethanes by L. Shagidullina, R. On the basis of alkanolamine Lapromol A, polyesters of various structures and an aromatic diamine Curalon M curing systems for polyurethane composites were developed. Sorption extraction of palladium II with modified polysiloxane by L. Intensification of cyclohexanone purification stage from impurities in caprolactam production using phase transfer catalysis by E.
Modification of the structure of cellulose triacetate films in the course of solvent vapor sorption by B. The optimum brand of the sorbent was chosen. Komin
The sorbents were tested in laboratory in industrial conditions. Glazko; S.
Galyametdnov It studies the influence of APS and HCl concentration on the surface electrical resistance and the absorption loss of electromagnetic shielding fabric.
Opeida; M. A correlation was found between the process parameters in the stages of flocculation and sediment densification. Heteronuclear coordination compounds capable of catalyzing the low-temperature dissociation of urethane groups were synthesized on the basis of copper and cobalt chlorides. Glazko; S. Kinetics of hindered settling processes of new model dispersion systems, suspensions of titanium dioxide of anatase modification and magnesium hydroxide upon introduction of a macromolecular cationic copolymer of acrylamide and polymer-inorganic hybrids, was studied.