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catalogue:Articles
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71-80 of 82
periodical press (Magazines)
ALIYEV F. R.
Aliyev, F. R. Synthesis and study of a new mixed-layered compound GeBi3 Te4 belonging to the nBi2–mGeBi2 Te4 homologous series [Text] / F. R. Aliyev, E. N. Orujlu , D. M. Babanly // Bulletin of the Karaganda University. Chemistry Series. - 2022. - № 1. - Р. 92-98. - Bibliogr.: p. 96-97 ISSN 2518-718Х.
UDC:
546.2
Subject headings
- Nonmetals of groups III, IV, VI and elements of group zero
Annotation
In light of the structural properties of tetradymite-like layered chalcogenide compounds, the mixed-layered compound GeBi3Te4 was predicted and synthesized for the first time, which belongs to the nBi2–mGeBi2Te4 homologous series in the Ge-Te-Bi system
Keywords
Ge-Bi-Te ternary system, nBi2–mGeBi2Te4 homologous series, GeBi3 Te4 , GeBi4 Te4, tetradymitelike structure, topological insulators
Kazakhstan
0/0 Free
periodical press (Magazines)
NURMAGANBETOV ZH. S.
Nurmaganbetov, Zh. S. Synthesis and Structure of 4-Substituted (1S,9aR)-1-[(1,2,3-triazol-1-yl)methyl]octahydro-1H-quinolysines of Lupinine [Text] / Zh. S. Nurmaganbetov, S. D. Fazylov , K. M. Turdybekov [et al.] // Bulletin of the Karaganda University. Chemistry Series. - 2022. - № 2. - Р. 12-22. - Bibliogr.: p. 20-21 ISSN 2518-718Х.
UDC:
547.94
Subject headings
- Natural alkaloids
Annotation
The article presents results on the synthesis and investigation of the structural features of a number of 1,4-disubstituted 1H-1,2,3-triazole derivatives of the alkaloid lupinine
Keywords
quinolysine alkaloids, lupinine, azides, triazoles, methanesulfonyl chloride, terminal alkynes, 1,3- dipolar cycloaddition reaction, X-ray structural analysis
Kazakhstan
0/0 Free
periodical press (Magazines)
KURMANBAYEV A. A.
Kurmanbayev, A. A. Soil biological activity and its indicators in soil quality monitoring : mini-review [Text] / A. A. Kurmanbayev, K. K. Mussayeva // Почвоведение и агрохимия. - 2023. - № 3. - 99-108 р.. - Bibliogr.: 105-107 р.
ISSN 1999-740Х.
UDC:
631.4
Subject headings
- Soil science. Soil research
Annotation
The article presents a systematic picture of the biological activity of the soil
Keywords
biological activity of the soil, indicators of soil fertility, soil science, soil research, soils
Kazakhstan
0/0 Free
periodical press (Magazines)
JUAN DU
Juan Du, Solvents Triggered Coil-to-Globule-to-Coil Transition of Dual Nanocomposite Hydrogels with Inorganic Hybrid Crosslinking [Text] / Juan Du Shimei Xu // Bulletin of the Karaganda University. Chemistry series. - 2022. - № 3. - Р. 115-126. - Bibliogr.: p. 124-125 ISSN 2518-718Х.
UDC:
544
Subject headings
- Physical chemistry
Annotation
This paper presents the study on the reentrant solvation of dual nanocomposite hydrogel poly-N isopropylacrylamide/Laponite/SiO2 (PNIPAM/Laponite/SiO2) upon shrinkage/reswelling process.
Keywords
inorganic hybrid crosslinking, dual nanocomposite hydrogel, coil-to-globule-to-coil transition, poly-N-isopropylacrylamide, polar solvent
Kazakhstan
0/0 Free
periodical press (Magazines)
BURKEYEV M. ZH.
Burkeyev, M. Zh. Synthesis and Investigation of the Properties of Polymer-immobilized Silver- and Gold Nanoparticles [Text] / M. Zh. Burkeyev, S. R. Shibayeva , T. O. Khamitova [et al.] // Bulletin of the Karaganda University. Chemistry series . - 2022. - № 3. - Р. 198-207. - Bibliogr.: р. 206 ISSN 2518-718Х.
UDC:
54.04
Subject headings
- Chemical properties (and constants)
Annotation
Metal–polymer composites based on copolymers of polypropylene glycol maleate phthalate with acrylic acid and metallic gold and silver were synthesized for the first time
Keywords
nanocomposites, silver, gold, copolymer, polypropylene glycol maleate phthalate, acrylic acid, metal–polymer complex, antimicrobial activity
Kazakhstan
0/0 Free
periodical press (Magazines)
TURGUNALIEVA D. M.
Turgunalieva, D. M. Synthesis and Antibacterial Activity of Hydrazones of Isonicotinic and Salicylic Acids Based on Acetyl Derivatives of Coumarin and Benzo [g] [1,3,5] Oxadiazocine [Text] / D. M. Turgunalieva, D. S. Dilbaryan , A. S. Vasilchenkо [et al.] // Bulletin of the Karaganda University. Chemistry Series. - 2022. - № 4. - Р. 25-34. - Bibliogr.: p. 33-34 ISSN 2518-718Х.
UDC:
544.32
Subject headings
- Thermodynamic functions of chemical processes
Keywords
hydrazides, isoniazid, salicylic acid hydrazide, coumarins, hydrazones, antimicrobial activity
Kazakhstan
0/0 Free
periodical press (Magazines)
PANSHINA S. YU.
Panshina, S. Yu. Synthesis of Cucurbit [6] uril Using 1-Hydroxyethylidene-1,1-Diphosphonic Acid as a “Green Catalyst” [Text] / S. Yu. Panshina, A. A. Bakibaev , A. N. Guslyakov [et al.] // Bulletin of the Karaganda University. Chemistry Series. - 2022. - № 4. - Р. 5-13. - Bibliogr.: p. 10-11 ISSN 2518-718Х.
UDC:
544.4
Subject headings
- Chemical kinetics. Catalysis
Annotation
In this work, 1-hydroxyethylidene-1,1-diphosphonic acid (HEDP) was used for the first time as a catalyst for “Green chemistry” in the synthesis of cucurbit[6]uril in an aqueous medium
Keywords
cucurbit[6]uril, 1-hydroxyethylidene-1,1-diphosphonic acid, glycoluril, paraformaldehyde, oligomer
Kazakhstan
0/0 Free
periodical press (Magazines)
MAMYTBEKOV G. K.
Mamytbekov, G. K. Synthesis, Structure and Properties of Hybrid Composite Bentonite-Based Materials [Text] / G. K. Mamytbekov, Zh. I. Beksultanov , V. I. Bannykh [et al.] // Bulletin of the Karaganda University. Chemistry series . - 2022. - № 3. - С. 267-282. - Bibliogr.: р. 277-279 ISSN 2518-718Х.
Annotation
A systematic study of the synthesis of hybrid composite materials based on synthetic (poly-Nvinylpyrrolidone) and natural (agar-agar) macromolecules in the presence of plasticizers (PEG-400, glycerin) and mineral filler bentonite has been performed by the method of electron irradiation
Keywords
composition material , polymer-inorganic compositions , electron irradiation, bentonite, synthetic polymers, natural polymers
Kazakhstan
0/0 Free
periodical press (Magazines)
ZULFUGAROVA S. M.
Zulfugarova, S. M. Synthesis of Transition Metal Ferrites (Co, Cu, Ni, Mn) by the Sol-Gel Method with Combustion and the Use of Microwave Processing [Text] / S. M. Zulfugarova, G. R. Azimova , Z. F. Aleskerova [et al.] // Bulletin of the Karaganda University. Chemistry Series. - 2022. - № 4. - Р. 118-135. - Bibliogr.: p. 130-134 ISSN 2518-718Х.
UDC:
546
Subject headings
- Inorganic chemistry
Annotation
This review considers recent work on the synthesis of transition metal ferrites (Co, Cu, Ni, Mn) by sol-gel method with combustion, as well as the effect of microwave radiation
Keywords
ferrites, sol-gel method with combustion, complexing agents, microwave technology, microwave power, dispersion, texture, specific surface area, particle size
Kazakhstan
0/0 Free
periodical press (Magazines)
HOUBI A.
Houbi, A. Synthesis and Microwave Absorption Properties of (Ni0.5Zn0.5Fe2O4/CI/CB) Ternary Composites [Text] / A. Houbi, A. A. Zharmenov; Y. Atassi [et al.] // Bulletin of the Karaganda University. Chemistry Series. - 2022. - № 4. - Р. 142-151. - Bibliogr.: p. 149-150 ISSN 2518-718Х.
UDC:
542.9
Subject headings
- Chemical reactions. Selected chemical methods
Annotation
In this work, ternary composites of NiZn ferrite/carbonyl iron/carbon black (Ni0.5Zn0.5Fe2O4/CI/CB) were prepared via two stages
Keywords
NiZn ferrite, сarbonyl iron, сarbon black, reflection loss, absorption bandwidth, matching frequency, paraffin wax matrix, surface density
Kazakhstan
0/0 Free
ALIYEV F. R.
SYNTHESIS AND STUDY OF A NEW MIXED-LAYERED COMPOUND GEBI3 TE4 BELONGING TO THE NBI2–MGEBI2 TE4 HOMOLOGOUS SERIES
periodical press (Magazines)
0/0 Free
NURMAGANBETOV ZH. S.
SYNTHESIS AND STRUCTURE OF 4-SUBSTITUTED (1S,9AR)-1-[(1,2,3-TRIAZOL-1-YL)METHYL]OCTAHYDRO-1H-QUINOLYSINES OF LUPININE
periodical press (Magazines)
0/0 Free
KURMANBAYEV A. A.
SOIL BIOLOGICAL ACTIVITY AND ITS INDICATORS IN SOIL QUALITY MONITORING : MINI-REVIEW
periodical press (Magazines)
0/0 Free
JUAN DU
SOLVENTS TRIGGERED COIL-TO-GLOBULE-TO-COIL TRANSITION OF DUAL NANOCOMPOSITE HYDROGELS WITH INORGANIC HYBRID CROSSLINKING
periodical press (Magazines)
0/0 Free
BURKEYEV M. ZH.
SYNTHESIS AND INVESTIGATION OF THE PROPERTIES OF POLYMER-IMMOBILIZED SILVER- AND GOLD NANOPARTICLES
periodical press (Magazines)
0/0 Free
TURGUNALIEVA D. M.
SYNTHESIS AND ANTIBACTERIAL ACTIVITY OF HYDRAZONES OF ISONICOTINIC AND SALICYLIC ACIDS BASED ON ACETYL DERIVATIVES OF COUMARIN AND BENZO [G] [1,3,5] OXADIAZOCINE
periodical press (Magazines)
0/0 Free
PANSHINA S. YU.
SYNTHESIS OF CUCURBIT [6] URIL USING 1-HYDROXYETHYLIDENE-1,1-DIPHOSPHONIC ACID AS A “GREEN CATALYST”
periodical press (Magazines)
0/0 Free
MAMYTBEKOV G. K.
SYNTHESIS, STRUCTURE AND PROPERTIES OF HYBRID COMPOSITE BENTONITE-BASED MATERIALS
periodical press (Magazines)
0/0 Free
ZULFUGAROVA S. M.
SYNTHESIS OF TRANSITION METAL FERRITES (CO, CU, NI, MN) BY THE SOL-GEL METHOD WITH COMBUSTION AND THE USE OF MICROWAVE PROCESSING
periodical press (Magazines)
0/0 Free
HOUBI A.
SYNTHESIS AND MICROWAVE ABSORPTION PROPERTIES OF (NI0.5ZN0.5FE2O4/CI/CB) TERNARY COMPOSITES
periodical press (Magazines)
0/0 Free