Electronic catalog
Genre:Естественные науки (natural_sciences)
language:English
Search result:
561-570 of 683
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)
GANDHI S. P.
Gandhi, S. P. Validated High Performance Thin Layer Chromatography Method for Simultaneous Estimation for Gallic Acid and Quercetin in Polyherbal Blend and Their Quantitative Estimation [Text] / S. P. Gandhi, A. R. Gawhane , S. D. Kapse [et al.] // Bulletin of the Karaganda University. Chemistry Series. - 2022. - № 4. - Р. 54-64. - Bibliogr.: p. 63 ISSN 2518-718Х.
UDC:
543
Subject headings
- Analytical Chemistry
Annotation
Simple, sensitive high performance thin layer chromatography method for the estimation of gallic acid and quercetin in in-house polyherbal blend has been developed and validated
Keywords
gallic acid, quercetin, simultaneous estimation, high performance thin layer chromatography, validation, quantification, polyherbal, extracts
Kazakhstan
0/0 Free
periodical press (Magazines)
BHOLE R. P.
Bhole, R. P. Design and Synthesis of Vitamin Drug Conjugate for its Probable Potential Against SARS-COV-2 Infections [Text] / R. P. Bhole, P. M. Karche , Y. Shinde // Bulletin of the Karaganda University. Chemistry Series. - 2022. - № 4. - P. 46-53. - Bibliogr.: p. 51-52 ISSN 2518-718Х.
UDC:
544.4
Subject headings
- Chemical kinetics. Catalysis
Keywords
vitamin drug conjugate, SARS-COV-2, hydroxychloroquine, folic acid, molecular modelling, molecular dynamic stimulation
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)
MAKASHEVA A. M.
Makasheva, A. M. Direct Correlation between Fluid Cluster Structure and Its Viscosity [Text] / A. M. Makasheva, V. P. Malyshev , L. A. Bekbayeva // Bulletin of the Karaganda University. Chemistry Series. - 2022. - № 4. - Р. 65-75. - Bibliogr.: p. 72-73 ISSN 2518-718Х.
UDC:
544.4
Subject headings
- Chemical kinetics. Catalysis
Keywords
Boltzmann distribution, randomized particles, probability, virtuality, cluster, melt, viscosity, alkali metals
Kazakhstan
0/0 Free
periodical press (Magazines)
AYAZBAYEVA A. YE.
Ayazbayeva, A. Ye. Temperature and Salt Responsivity of Anionic, Cationic and Amphoteric Nanogels Based on N-Isopropylacrylamide, 2-Acrylamido-2-Methyl-1-Propanesulfonic Acid Sodium Salt and (3-Acrylamidopropyl) Trimethylammonium Chloride [Text] / A. Ye. Ayazbayeva, A. V. Shakhvorostov , S. E. Kudaibergenov // Bulletin of the Karaganda University. Chemistry Series. - 2022. - № 4. - Р. 14-24. - Bibliogr.: p. 22-23 ISSN 2518-718Х.
UDC:
541.64
Subject headings
- Chemistry of macromolecules. Products of polymerization, polycondensation and polyaddition reactions
Annotation
Three different nanogels possessing anionic, cationic and amphoteric character were synthesized via conventional redox initiated free radical copolymerization of N-isopropylacrylamide, 2-acrylamido-2-methyl-1-propanesulfonic acid sodium salt and (3-acrylamidopropyl) trimethylammonium chloride
Keywords
polyampholyte nanogels, poly-N-isopropylacrylamide, ionic monomers, volume phase transition temperature, amphoteric nanogel, cationic nanogel
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)
ZHINZHILO V. А.
Zhinzhilo, V. А. Coordinating Polymers Based on Nickel(II) and Cobalt(II) Trimesinates as Promising Adsorbents of Organic Dyes [Text] / V. А. Zhinzhilo, V. А. Litvinova , V. M. Lyamina [et al.] // Bulletin of the Karaganda University. Chemistry series . - 2022. - № 3. - Р. 239-253. - Bibliogr.: р. 249-250 ISSN 2518-718Х.
UDC:
544
Subject headings
- Physical chemistry
Annotation
In this work, metal organic framework structures based on nickel and cobalt trimesinates were synthesized by a modified procedure by reacting nickel acetate and cobalt nitrate with trimesic acid in the presence of alkali
Keywords
metal organic framework structures, coordination polymers, trimesic acid, pollutants, thermodynamic parameters, adsorption capacity
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)
FOMIN V. N.
Fomin, V. N. Method for Qualitative and Quantitative Analysis of Ancient Lead Enamel Using Laser Inducted Breakdown Spectroscopy [Text] / V. N. Fomin, E. R. Usmanova , E. F. Gyul [et al.] // Bulletin of the Karaganda University. Chemistry Series. - 2022. - № 4. - Р. 107-117. - Bibliogr.: p. 114-115 ISSN 2518-718Х.
UDC:
543.4
Subject headings
- Spectral methods of analysis. Optical analysis methods
Annotation
The article discusses the method of laser spark emission spectroscopy, which is used to analyze archaeological enamel samples from the site of Juchi Khan (XIV century)
Keywords
chemometrics, cluster analysis, low-melting lead enamels, probabilistic deterministic design of experiment, archeology, settlement of Jochi Khan
Kazakhstan
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
GANDHI S. P.
VALIDATED HIGH PERFORMANCE THIN LAYER CHROMATOGRAPHY METHOD FOR SIMULTANEOUS ESTIMATION FOR GALLIC ACID AND QUERCETIN IN POLYHERBAL BLEND AND THEIR QUANTITATIVE ESTIMATION
periodical press (Magazines)
0/0 Free
BHOLE R. P.
DESIGN AND SYNTHESIS OF VITAMIN DRUG CONJUGATE FOR ITS PROBABLE POTENTIAL AGAINST SARS-COV-2 INFECTIONS
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
MAKASHEVA A. M.
DIRECT CORRELATION BETWEEN FLUID CLUSTER STRUCTURE AND ITS VISCOSITY
periodical press (Magazines)
0/0 Free
AYAZBAYEVA A. YE.
TEMPERATURE AND SALT RESPONSIVITY OF ANIONIC, CATIONIC AND AMPHOTERIC NANOGELS BASED ON N-ISOPROPYLACRYLAMIDE, 2-ACRYLAMIDO-2-METHYL-1-PROPANESULFONIC ACID SODIUM SALT AND (3-ACRYLAMIDOPROPYL) TRIMETHYLAMMONIUM CHLORIDE
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
ZHINZHILO V. А.
COORDINATING POLYMERS BASED ON NICKEL(II) AND COBALT(II) TRIMESINATES AS PROMISING ADSORBENTS OF ORGANIC DYES
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
FOMIN V. N.
METHOD FOR QUALITATIVE AND QUANTITATIVE ANALYSIS OF ANCIENT LEAD ENAMEL USING LASER INDUCTED BREAKDOWN SPECTROSCOPY
periodical press (Magazines)
0/0 Free