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коллекция "revolution"
Главная Коллекция "Revolution" Химия
  • 31. All-Russian scientific conference on "Theoretical and experimental investigations of synthesis, modification and polymer treatment process"

    Polymers, inorganic and organic, amorphous and crystalline substances consisting of "Monomeric units" connected in a long macromolecule chemical bonds. Molecular modeling of melting process of solid polymers in the transition and plastic deformation.

    статья (30,3 K)
  • 32. Amaranthus cruentus как источник биогенного кальция

    Исследование содержания кальция в листьестеблевой массе растения Amaranthus cruentus. Изучение эффективности использования амаранта в качестве антацидного препарата. Особенности выхода кальция под действием различных органических и неорганических кислот.

    статья (51,1 K)
  • 33. Angiotensin i-converting-enzyme-inhibitory and antibacterial peptides from lactobacillus helveticus PR4 proteinase-hydrolyzed caseins of milk from six species

    Purification, sequencing and synthesis of ACE-inhibitory and antibacterial peptides. Substrates and chemicals. Production of sodium caseinate hydrolysates. Hydrolysis of synthesized peptides or crude peptide fractions by trypsin and chymotrypsin.

    статья (356,7 K)
  • 34. Anodic deposition of extrinsic compounds

    Anodic deposition of own and extrinsic hydroxides on aluminium from electrolyte was studied by voltastatic method at low and high voltages. The mechanism of precipitation using the conception of fast neutralization coagulation, the models of nucleation.

    статья (179,8 K)
  • 35. Binding energies for CO on clean and oxygen-modified Mo(110) surface

    The interaction of CO molecules with clean and oxygen-modified Mo(110) surface has been investigated by means of density functional calculations. That on both clean and oxygencovered Mo(110) surfaces CO molecules are tilted with respect to the normal.

    автореферат (296,0 K)
  • 36. Biopolymers for seed presowing treatment

    The study of physico-chemical properties of modified forms of natural biopolymers – carboxymethyl cellulose and xanthan gums, their ability to film formation water-soluble polymeric compositions and the influence on growth and productivity of crops.

    статья (832,6 K)
  • 37. Catalytic cooligomerization of styrene and dicyclopentadiene: yield and properties dependence on reaction mixture composition

    Monomers conversion dependence on reaction mixture composition. Consideration of the dependence cooligomer of and its characteristics, average molecular weight. Study of liquid products of pyrolysis of hydrocarbons: styrene and dicyclopentadiene.

    статья (275,3 K)
  • 38. Characteristics Platinum

    Platinum as a chemical element, six it naturally occurring isotopes. History of the discovery of this metal. Use as precious metal. Industrial applicability alloys containing platinum in catalytic converters, laboratory equipment, dentistry equipment.

    презентация (249,1 K)
  • 39. Characterization and classification of organic compounds

    Carbon as the element essential to all of life, and hence the basis for a vast field of study. Electronegativity value of fluorine. Plastic polystyrene - important product of the hydrocarbon family. Chemical properties of carboxylic acids and esters.

    доклад (9,5 K)
  • 40. Chelating tendencies of o-hydroxy pheny1 azo-acety1 acetone with transition metal ions

    A comparison of the transition and nontransition metal ion complexes has been done. The absorption spectra provide that the reagent is more and selective for manganese than other metals. The electronic absorption measurements at different pH-values.

    статья (536,8 K)
  • 41. Chemical design of carbon-coated Al2O3 nanoparticles

    The novel approach to chemical design of carbon-coated Al2O3 nanoparticles with an average particle size of 8-10 nm was developed. Carbon coating was synthesised by modification of fumed alumina support with 4,4-methylenebis and its subsequent pyrolysis.

    автореферат (1,8 M)
  • 42. Chemical modification of polyglycidyl phenolformaldehyde oligomers by methacrylic acid

    Study the chemical modification polyglycidyl phenolformaldehyde oligomers by methacrylic acid using a catalyst benzyltriethylammonium chloride. The influence of time, temperature on the rate of reaction between compounds. A structuring chemical mixtures.

    статья (256,8 K)
  • 43. Chemistry and Applications of Leuco Dyes

    The applications of leuco-dyes, of spiro compounds and tetrazolium salts. The transformation of the molecules in thermal and photo-imaging systems. Leuco compounds which are not formed by reduction of the parent dye. The chemistry of the phthalides.

    книга (6,9 M)
  • 44. Coating materials and surface

    Analysis of the effect of resin in the carrier of the coating on its operational properties. Coating classification by type. Characteristics of the widely used resins for the manufacture of modern coatings: acrylics, alkyds, epoxy resins, polyesters.

    статья (14,6 K)
  • 45. Comparative analysis of physical ageing kinetics in arsenic-selenide glasses

    Composition features of the kinetics of enthalpy losses H(t), caused by physical aging in chalcogenide glasses, subject to the structural model of chain rearrangement. Mechanism of natural physical aging, specificity of structural-topological complexes.

    статья (276,0 K)
  • 46. Comparison of antibacterial activity of green synthesized silver nanoparticles with different morphologies, using MIC method

    Features silver nanoparticles were produced using tannic acid solution as reducing and capping agent. Results of UV-Vis and XRD ensured the existence of silver nanoparticles in the final samples. Nanoparticles with different morphologies were detected.

    статья (934,4 K)
  • 47. Contribution to the investigation of the Y–Cu–Sn ternary system

    Construction of isothermal section of the phase diagram of the Y–Cu–Sn ternary system at 673 K in the whole concentration range, using X-ray diffraction and EPM analyses. Calculations of crystallographic parameters and theoretical diffraction patterns.

    статья (1,1 M)
  • 48. Cooligomerization of C9 fraction unsaturated hydrocarbons initiated by organic peroxides

    Characteristics of the initial C9 fraction. Unsaturated hydrocarbons conversion, their concentration. Products of pyrolysis diesel fuel production of ethylene. Cooligomerization of C9 fraction unsaturated hydrocarbons initiated by organic peroxides.

    статья (485,0 K)
  • 49. Copper(II) and nickel(II) with N-bis(salicylidene)thiosemicarbazide heterometal complex compounds

    Heterometal coordination compounds of copper(II), nickel(II), alkaline-earth metals with N-bis(salicylidene)thiosemicarbazide have been synthesized. Using elemental analysis has been shown that the synthesized compounds have semi-conducting properties.

    статья (253,6 K)
  • 50. Crystal Engineering of new viologen-contanting supramolecular systems: chains versus helices assigned by H-bonds

    Synthesis semizwitterionic viologens for the crystal engineering of functional materials. Application of the control positions of molecules in crystals using hydrogen bonds. The triple helices had obtained by tunig the spacer between donor and acceptor.

    статья (105,7 K)
  • 51. Crystal structure analysis of the Ti3ZrFe2O0.3D6.4 and TiZr3Fe2O0.3D7.5 deuterides

    Hydrogenation of these oxygen-stabilized n-phases with Ti2Ni-type structure proceeds through expansion of their unit cells by 15.5 and 17.3%, respectively, without change of the type of metal matrix. Insertion of deuterium atoms into the metal matrix.

    статья (627,9 K)
  • 52. Crystal structure and hydrogenation properties of the hexagonal Dy2M17 and Dy2M17Cx

    The crystal structures of the Dy2M17 (M = Fe, Co, Ni) compounds were investigated from single crystal X-ray diffraction data (Th2Ni17 type structure, space group). The Dy2M17 binaries (M = Co, Ni) dissolve limited amounts of carbon, up to 0.2 (M = Co).

    статья (426,4 K)
  • 53. Crystal structure and magnetic properties of PrNi9Si4 and NdNi9Si4

    Synthesis of two rare-earth nickel silicide PrNi9Si4 and NdNi9Si4. Their crystal structures, refined from X-ray powder diffraction data, structure type. The two compounds as Curie-Weiss paramagnets due to magnetic moments carried on the rare-earth atoms.

    статья (881,3 K)
  • 54. Crystal-quasichemical analysis of defect subsystem of doped PbTe:Sb crystals and Pb-Sb-Te solid solutions

    Point defects in doped crystals PbTe:Sb and solid solutions. The dependence of the concentration of dominant point defects, charge carriers from the amount of alloying compounds and the magnitude of the initial deviation from stoichiometry in the matrix.

    статья (826,2 K)
  • 55. Cuprum (медь)

    Изучение характеристик химического состава меди, как элемента периодической системы. Обзор плоскости, температуры плавления и кипения метала. Анализ использования элемента для конструкционных сплавов латуней и бронзы. Особенности медноцинковых сплавов.

    презентация (312,2 K)
  • 56. Current Troger’s Base Chemistry

    Historical Developments; the Revival of Troger’s Bases, the Synthesis and Mechanism of Formation. Multiple TB Systems, reactivity. Physicochemical properties, molecular and Crystal Structure; Nuclear Magnetic Resonance Spectra; uses and applications.

    научная работа (827,4 K)
  • 57. Cинтез глікозидних та псевдоглікозидних похідних 6-азаурацилу та 6-азацитозину

    Розробка методів синтезу та вивчення властивостей N-глікозидних та псевдоглікозидних похідних 6-азапіримідинів. Аналіз методів отримання нуклеозидів 6-азаурацилу та 6-азацитозину та їх ациклічних аналогів. Вивчення біологічної активності одержаних сполук.

    автореферат (103,0 K)
  • 58. Cинтез поліфторометилвмісних аналогів γ-аміномасляної кислоти

    β-положенні поліфторалкільні замісники у вигляді рацематів та оптично чисті ізомери, доступні синтони алкоксивініл кетонів. Синтез фторованих аналогів гомопроліну на основі доступних фторорганічних сполук. Метод отримання β-поліфторометилвмісних

    автореферат (75,5 K)
  • 59. Cинтез, будова і властивості багатоканальних флуоресцентних зондів на основі 1,3-діариліденкетонів, дициклопентано-[b,e]піридинів та 3 гідроксихромонів

    Аналіз будови та механізмів роботи флуоресцентних зондів, серед яких два найбільш ефективні – внутрішньомолекулярне фотоперенесення заряду та протона використані при розробці нових флуоресцентних зондів. Синтез ряду ФЗ зондів класу 1,3 діариліденкетонів.

    автореферат (61,7 K)
  • 60. Cинтез, властивості та біологічна активність ефірів та амідів 2 оксо-індолінкарбонових кислот

    Синтез біологічно активних сполук у ряді ефірів і амідів карбонових кислот. Вивчення конденсації ефірів 2-оксоіндолін-3-гліоксилових кислот з ортозаміщеними анілінами, структурні особливості котрих дозволяють припустити можливість гетероциклізації.

    автореферат (365,0 K)

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