Synthesis of bis-diasacrown ethers by means of condensation of 4-tetra-hydroftal anhydride and its dibrom-derivative with hydroxyl-substituted diasacrown compound has been performed. Structure of compounds obtained has been established through study into their IR spectrum and chemical transformations.
The possibility of the alkaline-mineral binder on the basis of the chloride soda has been considered.
Radically initiated copolymerization of N-allylmaleimide with electron-donor monomers – styrene and trans-stilbene has been carried out and investigated. It has been established by chemical, spectral and kinetic methods of analysis that copolymerization reaction proceeds on double bonds of imide cycle and allyl multiple bonds do not participate in the chain growth reaction. The formation of […]
Using the reaction of 2-hydroxi-5-alkylphenylmetylsulphides with sulphur monochloride and by subsequent reduction of reaction mixture with hydrogen 2-hydroxy-3-methilthio-5-alkylthiophenols has been syntesized. The antioxidant properties of compounds examined by chemiluminesence metods showed that they possess high antioxidant activity and by their effectiveness are supperior to the known antioxidant of ionol type.
Antimicrobial properties of 1-pyperidino-3-(2‘,4‘,6‘-trimethylphenyl)-2-propanol hs been analysed and its x-ray structure examined on modern X-ray equipment.
The influence of deployment rate of potential and temperature on kinetics of chromate-anions rehabilitation from alkali solutions has been retraced, has identified the nature of polarization in separate parts of cathodic process. It has been established that at the low value of potentials from -0,18 to – 0.26B the process is being determined by the […]
The phase microdiagram of the (Sb2Te3+Bi2Te3+Se+Te)1-х(Pr)х system has been studied using differential thermal analysis, X-ray diffraction, microstructural analysis, and microhardness and density measurements. The influence of Pr element on physico-chemical properties of solid solution (Sb2Te3+Bi2Te3+Se+Te) of “p”-type analysed. At room temperature, the (Sb2Te3+Bi2Te3+Se+Te) based solid solution extends to 4 at. % Pr
A reaction of interaction between hexachlorenat of K2ReCl6 and a mixture of sulphuril and formic acids taken as 1:2 has been studied. it was established that during this reaction at 100–1100C temperature within 3 hours, no restoration of the salt K2ReCl6 to (CO)5Re(I)Cl was observed. Within IR-spectrum of reaction product there are missing lines of […]
antioxidizing properties of the production of aminoalcohols thiourea in model reactions have been synthesized and investigated. It has been established that the synthesized compounds take an active part in elecay of radicals and catalytic decomposition of cumene hydroperoxide.
By spectrophotometric method, compex formation of molybdenum (VI) with 2,3,4- trioxy-4’—sulfoazobenzene in the presence of non-ionic surface-active substances-triton X-114 has been studied. It has been established, that the polyligand complex with proportion 1:1:1, is formed in 0.1 M HCl medium and light absorbtion in λ=490 nm. Compliance with Beer’s law is carried out in an […]