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Effect of alternating electric current frequency on the viscosity of coal tar

Amerkhanova, Sh.K.; Baikenov, M.I.; Shlyapov, R.M.; Uali, A.S. (Springer US, 2013-09)

The results of a study on the effect of alternating electric current on the relative viscosity of coal tar from Shubarkol coal are reported. The optimum conditions of treatment were established. It was found that the entropy ...

Simulation of the destructive hydrogenation of coal asphaltene (Short Communication)

Baikenov, M.I.; Amerkhanova, Sh.K.; Baikenova, G.G.; Abulyaisova, L.K.; Uali, A.S. (Springer US, 2013-07)

Data of the computer simulation of the destructive hydrogenation of coal asphaltene are reported. These data were obtained by quantum-chemical methods for refining the geometric configurations of the asphaltene molecule ...

Cavitation Extraction of Phenols form Coal Tar

Baikenov, M.I.; Amerkhanova, Sh.K.; Baikenova, G.G.; Shlyapov, R.M.; Tuktybaeva, A.E. (Allerton Press, Inc., 2013-01)

The results of the chromatographic analysis of coal tar for the concentrations of phenols and their derivatives are given. It was shown that coal tar from AO Sary-Arka Spetskoks is characterized by a high concentration of ...

Catalytic hydrogenation of a three-component mixture of polyaromatic hydrocarbons in the presence of iron-containing additives

Baikenov, M.I.; Amerkhanova, Sh.K.; Baikenova, G.G. (Allerton Press, Inc., 2013-03)

The results of the catalytic hydrogenation of a three-component anthracene-benzothiophene-biphenyl mixture in the presence of different catalytic additives are given. It was found that the conversion of the mixture of model ...

Synthesis, mechanism of formation and spatial arrangement of (2S,3S,6R)-2,6-diphenyl-3,4-dimethyl-6-ol

Nurkenov, O. A.; Fazylov, S. D.; Abulyaissova, L. K.; Turdybekov, K. M.; Shaltakov, S. N.; Isaeva, A. Zh. (Springer US, 2013-12)

Alkylation of alkaloid D-pseudoephedrine with bromoacetophenone results in a morpholine derivative. Structural and energy characteristics of the molecules of the starting, intermediate, and final reaction products were ...

Structure and physicochemical properties of cation polymethine dyes in Langmuir-Blodgett films

Ibrayev, N.Kh.; Seliverstova, E.V.; Tenchurina, A.R.; Ishchenko, A.A.; Shargaeva, A.Yu. (Springer US, 2013-12)

The physicochemical properties of monomolecular layers of amphiphilic cation polymethine dyes (i.e., thia- and oxacarbocyanines) on the surface of a water subphase are studied along with the conditions of Langmuir-Blodgett ...

Preparation and photophysical properties of thin films of coumarin dyes

Ibrayev, N.Kh.; Seliverstova, E.V.; Alekseeva, V.I.; Marinina, L.E.; Savvina, L.P. (SP MAIK Nauka/Interperiodica, 2013-07)

The results from investigating the photophysical properties of new coumarin dyes synthesized and incorporated into Langmuir-Blodgett films are presented. A method for forming monolayers on the surface of a water/air interface ...

Heat capacity and thermodynamic functions of cadmium tellurites in the range of 298.15–673 K

Rustembekov, K. T.; Dyusekeeva, A. T. (SP MAIK Nauka/Interperiodica, 2013-05)

The isobaric heat capacity of cadmium tellurites is studied by dynamic calorimetry in the range of 298.15–673 K to derive the equation for the C p ○ ∼ f(T) dependence, and to determine the thermodynamic functions. The C p ...

X-ray diffraction characteristics of new chromitomanganites LaM 3 I CrMnO6 and LaM 3 II CrMnO7.5 (MI = Li, Na; MII = Mg, Ca)

Kasenov, B.K.; Mustafin, E.S.; Sagintaeva, Zh.I.; Isabaeva, M.A.; Davrenbekov, S.Zh.; Kasenova, Sh.B.; Abil’daeva, A.Zh. (SP MAIK Nauka/Interperiodica, 2013-02)

LaM 3 I CrMnO6 (MI = Li, Na) and LaM 3 II CrMnO7.5 (MII = Mg, Ca) chromitomanganites were synthesized by ceramic technology from lanthanum oxide, chromium(III) oxide, manganese(III) oxide, lithium carbonate, sodium carbonate, ...

Synthesis and x-ray diffraction study of new nanostructured manganite ferrites NdM 1.5 II MnFeO6 (MII = Mg, Ca, Sr, Ba)

Kasenov, B.K.; Davrenbekov, S.Zh.; Mustafin, E.S.; Kasenova, Sh.B.; Sagintaeva, Zh.I.; Abil’daeva, A.Zh.; Ermagambet, B.T.; Bekturganov, Zh.S. (SP MAIK Nauka/Interperiodica, 2013-05)

Manganite ferrites NdM 1.5 II MnFeO6 (MII = Mg, Ca, Sr, Ba) were synthesized from neodymium(III), manganese(III), and iron(III) oxides and alkaline-earth metal carbonates by a ceramic technology. By grinding the obtained ...

Specific Features of the Radiative Relaxation of Excited States of Polymethine Dyes of Different Ionicity in Films of Photoconductive and Nonphotoconductive Polymers

Ibrayev, N.Kh.; Afanasyev, D.A.; Ishchenko, A.A.; Davidenko, N.A. (SP MAIK Nauka/Interperiodica, 2013-01)

The spectral and luminescent properties of film composites based on photoconductive poly-N-epoxipropylcarbazole and nonphotoconductive polyvinylbutyral with admixtures of cationic and anionic polymethine dyes, as well as ...

Reactions of (−)-estafiatin with acidic reagents

Merkhatuly, N.; Iskanderov, A. N.; Balmagambetova, L. T.; Togizbaeva, B. B. (Springer US, 2013-09)

Preparation and properties of nanosized fluorescent solid films based on a polyelectrolyte-surfactant complex with organic dyes

Seliverstova, E.V.; Ibrayev, N.Kh.; Kudaibergenov, S.E. (SP MAIK Nauka/Interperiodica, 2013-05)

A procedure for preparing an organosoluble stoichiometric complex based on a cationic polyelectrolyte and an anionic surfactant is described. A method is proposed for forming monolayers at the water-air interface, along ...

Role of triplet states of polymethine dyes in photogeneration of electron-hole pairs in poly(N-epoxypropylcarbazole) films

Ibrayev, N.Kh.; Afanasyev, D.A.; Ishchenko, A.A.; Davidenko, N.A. (SP MAIK Nauka/Interperiodica, 2013-03)

The external magnetic field effects on the spectral and luminescent properties of film composites based on photoconductive poly(N-epoxypropylcarbazole) doped with cationic polymethine and merocyanine dyes have been studied. ...

Effect of external factors on the swelling of hydrogels based on poly(ethylene glycol) maleate with some vinyl monomers

Burkeev, M. Zh.; Magzumova, A. K.; Tazhbaev, E. M.; Burkeeva, G. K.; Kovaleva, A. K.; Khamitova, T. O.; Mataev, M. M. (SP MAIK Nauka/Interperiodica, 2013-01)

Effect of the pH of the medium, temperature, and nature of solvents and inorganic salt on the behavior of hydrogels based on copolymers of poly(ethylene glycol) maleate with acrylic and methacrylic acids and acrylamide was ...

Kinetics of photoreactions with participation of molecular oxygen in Langmuir-Blodgett films

Aimukhanov, A.K.; Ibrayev, N.Kh.; Kucherenko, M.G.; Chmereva, T.M. (SP MAIK Nauka/Interperiodica, 2013-04)

The influence of molecular oxygen on the luminescence of organic molecules (dyes and aromatic hydrocarbons) in Langmuir-Blodgett films is studied. Experimental luminescence kinetics curves are compared with theoretical ...

Synthesis of 2-amino-4-phenylthiazole-derived thiuram disulfide

Kenzhetaeva, S. O.; Abulyaissova, L. K. (Springer US, 2013-11)

Synthesis of 5-(morpholinomethyl)-1,3,4-thiadiazole-2-thione under microwave irradiation

Fazylov, S. D.; Nurkenov, O. A.; Kenzhetaeva, Sh. O.; Satpaeva, Zh. B.; Karipova, G. Zh. (Springer US, 2013-09)

The interaction of thiazolidine-2,4-dione with an aromatic aldehyde under microwave irradiation

Fazylov, S.D.; Nurkenov, O.A.; Amerkhanova, Sh.K.; Tolepbek, I.S. (Springer US, 2013-09)

Complexing ability of N-[2-(2-morpholinoacetyl)hydrazinocarbothioyl]benzamide toward iron(II) ions

Amerkhanova, Sh.K.; Nurkenov, O.A.; Fazylov, S.D.; Shlyapov, R.M.; Gavrilenko, M.A.; Bekkulina, F.Zh. (2013-05)

Qualitative and quantitative assessment of the complexing ability of N-[2-(2-morpholinoacetyl)-hydrazinocarbothioyl]benzamide toward iron(II) ions is given. Stability constants of iron(II) complexes are determined. ...

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