26 Result(s)
within
A. N. Zhukov
Chemistry
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Article
Effect of the Surface Conductance on Electrokinetic Potential Measured in Nonaqueous Media
The effect of the surface conductance on the ζ-potential of dispersed particles determined from their electrophoretic mobility in nonaqueous electrolyte solutions was considered. The conductivity of dilute qua...
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Article
Conductivity and Electrokinetic Potential of Microcrystalline Cellulose Particles in Aqueous HCl and NaOH Solutions
The conductivity of microcrystalline cellulose (MCC) dispersions in aqueous 10–5–10–2 M HCl and NaOH solutions was measured as a function of the particle volume fraction by the conductometry. The dependence of th...
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Article
Aggregation Stability of Aqueous Dispersions of Microcrystalline Cellulose: pH Dependence
The aggregation stability of aqueous dispersions of microcrystalline cellulose (MCC) was studied by the flow ultramicroscopy in a wide range of pH (1–11). The calculations of the molecular and ion-electrostati...
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Article
Sol-Gel Synthesis of Monodispersed SiO2 Nanoparticles in the Presence of Organic Amines
Preparation of monodispersed SiO2 nanoparticles of varied size by hydrolysis of tetramethoxysilane and polycondensation of the hydrolysis products was studied as influenced by the basicity and nucleophilicity of ...
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Article
Acid–Base Zeta-Metric Titration of Quartz Dispersions in Ethanol Solutions of Electrolytes
The conductivity of dilute quartz suspensions and electrophoretic mobility of quartz particles in solutions with the concentration C = 10–5–10–2 M XBr (X = H, Cs, Na, and Li) and NaOH, as well as in mixed solutio...
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Article
Effect of pH on the Aggregation Stability of Microcrystalline Cellulose Dispersions in Aqueous 0.1 M NaCl Solutions
Effect of pH on the coagulation kinetics of microcrystalline cellulose dispersions in an aqueous 0.1 M NaCl solution is studied by the flow ultramicroscopy. The lowest coagulation rate is observed at pH 4.9. A...
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Article
The Effect of Water Addition on the Electrosurface Properties of Quartz in Solutions of Alkali Metal Bromides in Ethanol
Electrosurface properties (the ζ-potential and surface conductivity) of quartz particles in water–ethanol solutions of CsBr, NaBr, and LiBr with concentrations C = 10–5–10–2 M are studied. The ζ (log C) dependenc...
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Article
The Effect of Composition of Water–Ethanol Solutions on the Kinetics of Coagulation of Fused Quartz Suspensions
The effect of composition of water–ethanol solutions containing 0–96 vol % alcohol on the coagulation kinetics of dilute fused quartz suspensions is studied using flow ultramicroscopy technique. It is establis...
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Article
The Effect of Composition of Water-Ethanol Solutions on Coagulation Kinetics of Amorphous Monodisperse Silica Suspensions
The effect of the composition of water-ethanol solutions on the coagulation kinetics of dilute amorphous monodisperse silica suspensions is studied using flow ultramicroscopy technique. It is found that the su...
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Article
The effect of preparation procedure and composition of water-ethanol suspensions of amorphous silica on their aggregative stability and kinetics of coagulation
The method of flow ultramicroscopy is employed to study the effect of the composition and preparation procedure of dilute water-ethanol suspensions of two samples of amorphous silica (fractionated fused quartz...
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Article
Surface charge of detonation nanodiamond particles in aqueous solutions of simple 1 : 1 Electrolytes
Adsorption isotherms of potential-determining H+ and OH− ions and the pH dependences of the specific surface charge of detonation nanodiamond (DND) particles are obtained in a pH range of 3–10 by the acid-base ti...
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Article
Comprehensive study of electrosurface properties of detonation nanodiamond particle agglomerates in aqueous KCl solutions
The electrosurface properties of nanoporous agglomerates of detonation nanodiamond (DND) particles purified from acidic impurities by dialysis are comprehensively investigated. Acid-base potentiometric titrati...
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Article
Surface modification of iron particles with a polyfluorinated disulfude: Effect of solvent and temperature
Adsorption of bis(2-chloro-3-oxaperfluorobutyl) disulfide from nonaqueous solutions onto the surface of carbonyl iron particles was studied with the aim of modification of these particles. The adsorption param...
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Article
Surface modification of iron particles with bis(3-oxa-2-chloroperfluorobutyl)disulfide
Gas-liquid chromatography has been employed to study bis(3-oxa-2-chloroperfluorobutyl)disulfide (S60Cl) adsorption from solutions in perfluoromethylcyclohexane, perfluorodimethylcyclohexane, perfluorodecalin, ...
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Article
Octadecylamine-based Langmuir-Blodgett films containing iron and copper hexacyanoferrates
Octadecylamine (ODA)-based Langmuir-Blodgett films modified with metal hexacyanoferrates are promising ion-exchange systems. The analysis of compression isotherms has led to the conclusion that iron and copper...
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Article
Colloido-chemical characteristics of porous glasses with different compositions in KNO3 solutions. 2. Electrosurface characteristics of porous glass particles
The surface charge and electrophoretic mobility of particles of porous glasses with different compositions have been studied in potassium nitrate solutions with concentrations of 10−3–10−2 M. It has been shown th...
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Article
Electrosurface properties of single-crystalline detonation nanodiamond particles obtained by air annealing of their agglomerates
A complex study of electrosurface properties has been performed for single-crystalline detonation nanodiamond particles with sizes of 4–5 nm obtained by air annealing of their agglomerates. FTIR spectroscopy a...
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Article
A study of the properties and composition of stearic acid monolayers on an aqueous subphase containing cadmium ions
Compression isotherms and chemical compositions of stearic acid (HSt) monolayers applied onto an aqueous subphase containing cadmium ions have been studied in a wide pH range. The data obtained have been used ...
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Article
Increase in the Reliability and Durability of Metal Impulse End Seals. Part 1
A new method is proposed for improving the reliability and durability of metal impulse seals due to an increase in wear resistance of ring end surfaces by applying a multilayer coating by electroerosion alloying.
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Article
Increase in the Reliability and Durability of Metal Impulse Seals. Part 2*
A new method is proposed for improving the reliability and durability of metal impulse seals due to an increase in wear resistance of ring end surfaces and also tongue and bush surfaces by electroerosion treat...
