Весці Нац. акадэміі навук Беларусі. Сер. хім. навук, 2000, No.2
/ Выданні акадэміі / Навуковыя часопісы
Весці Нац. акадэміі навук Беларусі. Сер. хім. навук, 2000, No.2
| Весці Нацыянальнай акадэміі навук Беларусі
СЕРЫЯ ХІМІЧНЫХ НАВУКВыдавец: Беларуская навука, Мінск, Рэспубліка Беларусь |
Нумар 2, 2000
ЗМЕСТ
НЕАРГАНІЧНАЯ ХІМІЯ
Kopylovich M.N., Kirillov A.M., Baev A.K.
Equilibrium constant of Alumina (III) and doubly-charge ions of 3d-metals ioint hydrolisis. pp. 5--8
Summary: By means of potentiometric titration the correlation between constant of hydrolisis рКhydr, |ОН-| / |Mn+| and contents of Al3+ in water solutiohs contained Co(II), Cu(II) and Zn(II) ions has been determinated. This correlation permits to evaluate ion influence on the hydroxo complexation process.
Shchukin G.L., Belanovich A.L., Karpushenkov C.A., Shchukin D.G., Savenko V.P.
Anodic plasma action on the titanium dioxide ultradisperse particles formation. pp. 9--12
Summary: Features of the formation of titanium dioxide ultradisperse particles in nitric acid aqueous solution during anodic spark erosion of titanium have been investigated.
КАЛОІДНАЯ ХІМІЯ
Snopkov V.B., Litarov V.Ya.
Influence of foam generation mode on the properties of the foams from carbamideformaldehyde resins. pp. 13--15
Summary: Parameters -- dispersion duration 1.5--3.0 min, pressure of dispensed in generator air 0.05--0.15 МРа -- are established for formation of the foams from carbamideformaldehyde resins, the most stable and the most uniformly on their composition foams.
ФІЗІЧНАЯ ХІМІЯ
Kolnenkov V.P.
Sequences of selectivity and manners of their expressing in simple ion exchange systems of great dimension. pp. 16--21
Summary: Quantative description of sequences of selectivity in multiion exchange based on different parameters of selectivity -- coefficients of distribution, separation and equilibrium is gave. Consiquent equations and ineqalities are deduced. Conditions of sequence's mutual consistency expressed in "scales" shown parameters of selectivity are found.
Polikarpov A.P., Valendo A.Ya.
Features of threedimensioned structure of g-irradiated high- and hiperhigh molecular-weight polvethylene. pp. 22--25
Summary: Thermomechanical properties of hiperhigh molecular-weight polyethylene have been investigated. It has been revealed the significant incriasing of heat stability of ultrahigh molecular-weight polyethylene at the irradiation of it in argon medium. This result is connected with intermolecular curing due to formation of covalent bonds.
Vashuk E.V., Vorobiova E.V., Basalyga I.I., Surinova I.A., Krutiko N.P.
Nydroaccumulating complexes on the base of hydrolyzed poly(acrylamide) with poly(vinylalcohol). pp. 26--29
Summary: Formation of polymeric complexes on the based of hydrolized poly(acrylamide) with poly(vinylalcohol) in aqueous solutions at different temperatures vs initial components concentration and initial components ratio has been investigated. Influence of the conditions of polycomplexes formation on resulting products hydroaccumulating ability has been shown.
Shkumatov V.M., Ovsyanko S.L., Rudoi A.L., Chernyavskii E.A., Yurkshtovich T.L., Kaputskii F.N.
Hydrophobic and affinic interactions during obtaining a-chymotripsin of heigh purity. pp. 30--34
Summary: Methods of analitical control of chymotripsinogen's selective cristalisation from a mixture of inactive zymogens and the process activation of the chymotrypsinogen both for hydrophobic and ion exchange chromatography with using HPLC have been developed. "Dual" nature of phenyl-conteined sorbents in relation of the alphachymotrypsin has been investigated.
Yurkshtovich T.L., Bychkovskii P.M., Starobinets G.L., Kaputskii F.N.
Sorption of prospydin by monocarboxycelulouse from binary mater-organic nonelectrolyte solutions. pp. 35--41
Summary: Molecular sorption of prospydin (an electrolyte of anticancer action) from his solution by two carboxylic ionexchangers in six binary water -- organical nonelectrolyte systems at 293 ± 1 K has been studied.
It has been settled that the dependence of lg Kd0/Kd from (so-s) (Kd is the partition constant of the electrolyte, s is the solutions surface tension, and the index o concern to the water phase) is very sensitive to the structural changes of the binary solutions, in particular to their microscopical demixture.
Mitina T.D., Mozheiko F.F., Pilipenko Z.B.
Foam formation ability of mater-salt solutions of surfase acttive substances in mater-salt solutions. pp. 42--46
Summary: The foaming power of water-salt solution of low molecular alkogols and acids has been investigated and its correlation with parameters of adsorbed layer of studed suface-active substance at the solution-air phase boundary has been established.
Kostyuk S.V., Mardykin V.P., Gaponik L.V., Kaputskii F.N.
"Qasialive" cationic polymerisation of styrene. pp. 47--51
Summary: The cationic polymerisation of styrene at the presence of А1С1з • OPh2 and А1Сl3 • OBu2 complexes at- 15 °C in solvents of various polarity has been investigated. It has been shown that the process proceed via "living" circuits and the decrease of solvent's polarity promote this process. It was established that water is not the effective initiator of "living" styrene polymerisation in such system.
Strelchionok E.V., Shevchuk V.V., Mozheiko F.F.
Influence of the emulsions of second degree on rheological property of montmorillonit's suspensions in nonwater medium. pp. 52--54
Summary: The influence of "water-in-oil" emulsions stabilizied by various surfactant on rheological behaviour of montmorillonit suspensions in organic medium have been investigated. The differences in the action of emulsions due to the nature of emulsifier have been found.
Kaputskii F.N., Starobinets G.L., Yurkshtovich T.L., Bychkovskii P.M.
Influence of hydrophobic interactions on diffusion and speed of release of biologicaly active electrolytes adsorbed by monocarboxycelulouse. pp. 55--58
Summary: The release of three organic electrolytes of anticancer action having quaternary ammonium cation as an ionogenic centre from monocarboxycelulouse has been investigated. The effective diffusion coefficients of the electrolytes have been calculated. Hydrophobic interactions of cation-radicals have been estimated. Attenuation of hydrophobic interactions is accompanied by enhancing of release and increasing of deviations from first Pick's law.
Sokol E.G., Kuvaeva Z.I., Soldatov V.S., Zhavnerko L.B.
Investigation of aspects of proline liquid ionexchange extraction. pp. 59--62
Summary: The extraction of proline by octane solutions of HD from aqueous and aqueous-salt solutions in wide range of pH has been studied. The maximum extraction for proline is in the range corresponding about the same content of cation and twitter-ion form of amino acid.
The proline extraction of cation form on pH = 1.0 and 1.5 has been investigated. As in the case of aliphatic amino acid it is impossible to advance of complete exchange of H+ with proline cations in extractant phase as a result of formation of stable extraction complexes upon participation of hydrogen of extractant sulphonic group.
Water sorption depend on ion exchange of phase composition. The dependence of equilibrium coefficient from equivalent fraction of proline in organic phase is satisfactory described by equation of four degree suggested earlier mathematical model.
Komarov V.S., Repina N.S., Rat'ko A.I.
Sinthesys of mineral sorbents with biporic structure. pp. 63--67
Summary: Biporic materials having characteristic distribution of pore volume on the effective radii have been obtained by the method of mixing of binder and powders with various pore structure. On the base of literature data it has been done the conclusion that macropores being spaces between particles of initial powders are in structure of synthezed samples. Theoretical interpretation obtained experimental results has been given.
АРГАНІЧНАЯ ХІМІЯ
Voitekhovich S.V., Gaponik P.N.
Alkylation of tetrazole and 5-monosubstituted tetrazoles with diacetone alcohol in acid medium. pp. 68--71
Summary: Alkylation of tetrazole and 5R-monosubstituted tetrazoles with diacetone alcohol in acid conditions (HClO4 Н2SO4) has been investigated. It was found that selectivity of alkylation depends on the nature of substituent R. It has been shown that present process is a sufficient method for synthesis of hitherto unknown 2-(2-methylpentanon-4-yl-2)-5R-tetrazoles (R = Me, Ph), including binuclear derivatives (R = p-Ph-C6H4).
Brilev V.V. †, Tarasevich V.A., Vasilevskii D.A., Makovetskii K.M.
Synthesis of 4-methyl-4'-hydroxy-diphenyl. pp. 72--75
Summary: The optimal conditions of the synthesis of 4-methyl-1,1-bis-(4'-hydroxyphenil) cyclohexane and its decomposition because of catalitic dehydration to 4-methyl-4'-hydroxybiphenyl have been determinated.
БІЯАРГАНІЧНАЯ ХІМІЯ
Sokolov Yu.A.
About relstionship between electronic structure and radioprotective activity of some indazoles. pp. 76--80
Summary: Quantum chemical MNDO study of electronic structure for 29 indazoles has been performed. Statistically significant quantative relation between some characteristics obtained and radioprotective activity was found out. Indazole structures which data predicted for radioprotective activity (survival, %) are on 50% level or more are proposed.
Survilo L.I., Vashkevich I.I., Ermolenko M.N., Kiseleva E.P., Budnikova L.P., Sviridov O.V., Shitikov B.D., Kosheleva M.I., Nevskaya L.L.
Quantative determination lentil-specific species of alpha-fetoprotein. pp. 81--85
Summary: Abnormal glycosilated alpha-fetoprotein (AFP) is a hepatocellular carcinoma marker at early stages of the disease. Our work was aimed at the development of the manner for the quantative determination serum AFP with abnormal carbohydrated component structure on the base of a kit for the determination of common serum AFP. Radioimmunoassay kit and affinity chromatography on the lentil-sepharose were used. Conditions for adsorbtion abnormal glycosilated AFP on lentil-sepharose had been determined. Samples of serum AFP contained abnormal AFP holded with lentil-sepharose, unbounded AFP was washed and lentil specific AFP was eluated by a-methyl-D-glucopyranosige solution. Then determination of AFP was carried out as usual without separating lentil-sepharose.
Calibrating curve was proted on the base of suspension lentil-sepharose in a-methyl-D-glucopyranosige solution. This permits to use for calibrating curve samples from common AFP.
Advantage of the developed method is in adaptation of the kit for radioimmuassay of common AFP for the determination of lentil specific AFP.
Shkumatov V.M., Lesnicovich Yu.A., Rudoi A.L.
Interaction sulpfated polysaccharides with proteins of PPSB-complex and electrotransport proteins of steroidhydrosimulated systems. pp. 86--91
Summary: For the express determination of the individual clotting factors in PPSB-complex HPLC in analitical variant has been recomended. It is established that in the presence of exogeneous heparin it is possible to achive separation of the factors VII and IX using one step of gel-filtration The possibility of using electrontransport proteins model system to stady the complex-formation of sulfated polysaccharides with proteins is shown.
ТЭХНІЧНАЯ ХІМІЯ І ХІМІЧНАЯ ТЭХНАЛОГІЯ
Krul L.P., Brazhnikov M.M., Matusevich Yu.I., Brazhnikova L.Yu., Novikov O.A.
Particularities technological process of obtaining synthetic water soluble polimer from wastes of polyacrylnytrilic fiber production. pp. 92--95
Summary: Particularities of technology of a synthetic water soluble polimer obtaining from wastes of polyacryinytrilic fiber production on industrial equipment have been considered. Variation of copolymer composition and dynamic viscosity of its solution as in different batchs so in the limits of one and the same batch has been observed.
Safonova A.M., Batura S.V., Shchurevich O.A.
Obtaining and investigation of physical-chemical properties of platinium contained activated carbon fibers. pp. 96--99
Summary: Conditions of platinium appleing to the activated carbon fibres (ACF) by means of reduction of H2PtCl6 with formic acid and sodium borohydride has been investigated. Optimum parameters of reduction of H2PtCl2 and products of its hydrolyze adsorbed on the ACF surface have been chosen. Pt-ACF (2.0-4.0 wight % Pt, reducing agent -- formic acid) with height catalitic activity in relation to oxidation of H2 and well reprodusing properties in all volume of sample have been obtained.
Radchenko Yu.S., Levitskii I.A.
Colour pigmentless glazes on the base of methadiabases. pp. 100--103
Summary: Investigation on synthesis pigmentless easemelting colour glazes on the base of methadiabases of Belarus have been carried out. Temperature-time conditions of quality coats forming were established The processes of structure and base forming of the coats in depending on chemical composition of glasses and manner of crystal phases separation have been ivestigated, estimation of their main properties have been carried out.
Rudakovskaya T.G., Shevchuk V.V., Mozheiko F.F., Zhdanovich I.В., Voitento A.I.
Influence of initial and modified pitch on physical-chemical prorerties of soils. pp. 104--106
Summary: The action of saponificated tall pitch -- byproduct of wood processing and its mixtures with reagent-modificators on physical-chemical properties of soils has been investigated. The possibility of utilization these reagents for decreasing of dust formation of soils has been shown.
Dovbysheva T.N., Novikov G.I.
Purification of completed deactivating solutions from detergents. pp. 107--110
Summary: Influences of reagents and precipitating conditions of detergents as unsoluble salts have been investigated. It was established that mass of radioactive precipitate to be subject to bury account for 9.5--13.4% from total mass of initial lowradioactive completed deactivating solutions arrived at processing. It has been shown that with the precipitation of detergents as unsoluble salts takes place the process of coprecipitation of Sr-90, beta-activity of initial utilisated solution has been decriased.
Lishtvan I.I., Kraiko V.M., Golovach A.P., Gapanovich E.V.
Soluble humic matters of natural waters. pp. 111--114
Summary: Results of ivestigation the humic matters, humus and fulvic acid, their molecular-mass distribution and the complexes of these compounds with iron ions in peat-mire and river water are presented.
Total natural waters humic matters contents was defined to vary from 3.7 mg/l (river water) to 322 mg/l (original peat deposit). River waters were viewed have an increase of hightmolecular fulvic acid volume while total humic matters is decreased in compare with peat-mire waters resulting thus to the increase of humic matters share having a complex link with iron ions.
Elinson I.S., Kashinskii A.V., Farafontov V.N., Titova L.I.
Adsorbtion of organic solvents vapours by activated carbon matter. pp. 115--117
Summary: The adsorption of ethylacetate and toluene on fibred and granlated carbons (Busofit, AUT, AR) has been investigated.
ВУЧОНЫЯ БЕЛАРУСІ
Капуцкий Ф.Н., Свиридов В.В., Браницкий Г.А., Рахманько Е.М., Ивашкевич О.А.
Старобинец Григорий Лазаревич (К 90-летию со дня рождения). С. 118--119
Націсніце тут, каб прачытаць артыкул
КАРОТКІЯ ПАВЕДАМЛЕННІ
Republican conference on organic chemistry. pp. 120--121
/ Выданні акадэміі / Навуковыя часопісы / Да пачатку старонкі
Распрацавана і падтрымліваецца Мікалаем М. Касцюковічам. Апошняе абнаўленне: 21 лістапада 2006 г.
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