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2020
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3(99)/2020-Химия
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Browsing 3(99)/2020-Химия by Issue Date

Browsing 3(99)/2020-Химия by Issue Date

Now showing items 1-13 of 13

Phenol solutions treatment by using hydrophobized track-etched membranes

Yeszhanov, A.B.; Dosmagambetova, S.S. (KSU Publ., 2020-09-30)

Phenols are one of the most common surface water pollution. The discharge of phenolic waters into water bodies and streams sharply degrade their general sanitary condition, since these compounds have a toxic effect, and ...
Epoxy/TiO2 composite materials and their mechanical properties

Bogdanova, L.M.; Lesnichaya, V.A.; Volkova, N.N.; Shershnev, V.A.; Irzhak, V.I.; Bukichev, Yu.S.; Dzhardimalieva, G.I. (KSU Publ., 2020-09-30)

The physicomechanical properties and thermal stability of epoxy nanocomposites with TiO2 (anatase — 75 %, rutile — 25 %) nanoparticles were studied. The TiO2/epoxy polymer (TiO2/EP) nanocomposite films were obtained by ...
Biologically active derivatives of fullerene C60. Current state and development prospects

Fazylov, S.D.; Nurkenov, О.А.; Muldakhmetov, Z.M.; Gazaliev, A.M.; Аrinova, А.Е.; Ibraev, M.K.; Vlasova, L.M.; Fazylov, A.S. (KSU Publ., 2020-09-30)

The article presents literature review on the physicochemical and biological properties of fullerene C60, as well as the authors' own experimental data on the synthesis of fullerene derivatives of amines and natural alkaloids. ...
The use of differential calculation methods for the destruction of copolymers of polyethylene glycol fumarate with the acrylic acid

Burkeev, M.Zh.; Sarsenbekova, A.Zh.; Bolatbay, A.N.; Tazhbaev, E.M.; Davrenbekov, S.Zh.; Nasikhatuly, E.; Zhakupbekova, E.Zh.; Muratbekova, A.A. (KSU Publ., 2020-09-30)

In this work, the thermal decomposition of copolymers based on polyethylene glycol fumarate with the acrylic acid using various ratios of initial monomers has been studied for the first time. The samples were studied in ...
Sorption of heavy metals by humic acids of chestnut soils

Sabitova, A.N.; Bayakhmetova, B.B.; Mussabayeva, B.Kh.; Orazhanova, L.K.; Ganiyeva, K.G. (KSU Publ., 2020-09-30)

The purpose of this article is to study the sorption of heavy metals by humic acids of light and dark chestnut soil. The objects of research are the samples of dark and light chestnut soils, selected from an ecologically clean ...
Effect of the hydrochloric acid concentration on the surface-active and functional characteristics of linear alkylbenzenesulfonic acid

Zabolotnykh, S.A.; Shcherban, M.G.; Solovyev, A.D. (KSU Publ., 2020-09-30)

The surface-active (surface tension, adsorption, molecule cross-sectional area in the adsorption monomolecular layer) and colloidal (viscosity, critical micelle concentration, solubilization) properties in aqueous and ...
Spectral study of thione-thiol tautomerization of thiourea in aqueous alcohol solution

Kalichkina, L.E.; Bakibaev, A.A.; Malkov, V.S. (KSU Publ., 2020-09-30)

In this work we studied the equilibrium of thione–thiol tautomerization by Raman and UV spectroscopies. This type of tautomerization influences on the course and direction of the reaction between thiourea and other organic ...
Simulation of the kinetics of direct coal hydrogenation

Balpanova, N.Zh.; Gyulmaliev, A.M.; Pankin, Yu.N.; Ma, F.; Su, K.; Khalitova, A.I.; Aitbekova, D.E.; Tusipkhan, A.; Baikenov, M.I. (KSU Publ., 2020-09-30)

The kinetics of coal hydrogenation from the Shenghua deposit (People's Republic of China) has been studied. To calculate the kinetic parameters, experimental data on the hydrogenation of coal from the Shenghua field have ...
Study of glycoluril and its derivatives by ¹H and ¹³C NMR spectroscopy

Panshina, S.Yu.; Ponomarenko, O.V.; Bakibaev, A.A.; Malkov, V.S.; Kotelnikov, O.A.; Tashenov, A.K. (KSU Publ., 2020-09-30)

Bicyclic bisureas, especially 2,4,6,8-tetraazabicyclo[3.3.0.]octan-3,7-dione (glycoluril), have a special place in chemistry of heterocyclic compounds. The carbamide fragment in glycoluril structure determines the properties ...
Essential oil of Pulicaria vulgaris (prostrata) and its biological activity

Zhanzhaxina, A.Sh.; Suleimen, Ye.M.; Ishmuratova, M.Yu.; Iskakova, Zh.B.; Seilkhanov, T.M.; Birimzhanova, D.A.; Suleimen, R.N. (KSU Publ., 2020-09-30)

The investigation of the chemical composition, antioxidant and cytotoxic activities of the essential oil of Pulicaria vulgaris wild growing in Akmola region, Kazakhstan was the aim of the study. The essential oil was ...
Development and validation of stability indicating HPTLC method for estimation of pirfenidone and characterization of degradation product by using mass spectroscopy

Bhole, R.P.; Jagtap, S.R.; Bonde, C.G.; Zambare, Y.B. (KSU Publ., 2020-09-30)

Pirfenidone is used as a novel antifibrotic agent approved for mild-to-moderate idiopathic pulmonary fibrosis. An extensive literature search revealed that, method validation by high-performance thin--layer chromatog-raphy ...
Extraction-photometric determination of osmium using quaternary water-thiopyrine-trichloroacetic and orthophosphoric acid system

Egorova, L.S.; Leites, E.A. (KSU Publ., 2020-09-30)

The article is devoted to the extraction-photometric determination of osmium. The aim was to modify the well known extraction-photometric determination of osmium by replacing chloroform, used as an organic solvent in a ...
Study of the kinetics of Bombyx mori chitosan ascorbate formation

Pirniyazov, K.K.; Rashidova, S.Sh. (KSU Publ., 2020-09-30)

In this work, for the first time, a water-soluble natural biopolymer of chitosan ascorbate based on Bombyx mori chitosan and ascorbic acid was obtained and kinetic features of the process were determined. Samples of chitosan ...

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