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коллекция "otherreferats"
Главная Коллекция "Otherreferats" Химия
  • 271. Study the effect of ammonia addition on the mechanism and properties of electrochemical deposition of silver and nickel alloy

    Ag-Ni alloy films were electrodeposited from an ammonia solution on copper substrates at various material ratios and current densities. Investigation of electrical conductivity and pH, formation of complexes with silver and nickel. X-ray diffraction.

    статья (711,9 K)
  • 272. Studying the processes of sulphates and chlorides extraction from water at low-waste water demineralization technology

    Ion exchange separation of sulfate and chloride with highbasic anionite Сl-species at regeneration solutions treatment for their reiterative use, followed with solutions’ desalination at reverse osmosis plant, and resulting concentrates’ demineralization.

    статья (314,6 K)
  • 273. Substantiation of the composition and methods of quality control for "Genta" ointment with the succinyl tannin antiresistant component

    Analysis of the results of the design and selection of compounds antimicrobial ointments containing gentamicin as the main active ingredient gallotannin and succinyl as a component of antiresistant against multiresistant strain of Pseudomonas aeruginosa.

    статья (328,0 K)
  • 274. Sulfur control in ultra-low sulfur steel refined by ladle furnace-vacuum degassing

    Sulfur - substance that be in the most kinds of steel. Research of influence of ladle furnace reductants in the desulfurization process. Control ultra-low sulfur steel. The chemical degassing in the ladle furnace-vacuum. Maintaining a low sulfur content.

    статья (185,1 K)
  • 275. Super deep penetration - new method of nanoreinforced composites producing based on polymer matrixes

    Effect of the method of mixing isoprene rubber with nanofillers on the properties of nanocomposites. The thermostability of rubber based on isoprene elastomer with MMT. The physical-mechanical properties of rubber based on isoprene elastomer (SRI).

    статья (237,8 K)
  • 276. Surface Plasmon Enhanced Photoluminescence of Rhodamine 6G on Au Nanoparticles 2D Array: Temperature Effects

    Influence of temperature on the photoluminescence of rhodamine deposited on array of the gold nanoparticles was studied. The factor of surface plasmonic enhancement of rhodamine luminescence. Electron-phonon scattering and thermal expansion of the gold.

    статья (541,9 K)
  • 277. Syntesis of novel N-substituted 3-(aminosulfonyl)-2H-1-benzopyran-2-one derivatives and their biological activity

    Method of syntesis of novel N-substituted 3-(aminosulfonyl)-2H-1-benzopyran-2-one in the Knoevenagel condensation conditions. Studing the biological activity of derivatives against protozoan and helminth parasites, active against Onchocerca lienalis.

    статья (83,3 K)
  • 278. Synthesis a new derivatives of benzoxazole

    Using phosphoric acid and phosphor pent oxide as new catalyst for preparing of derivatives of benzoxazole. Use of benzoaxol ring in medicinal chemistry. Synthesis of 1,3-(Benzene-1,3-diyl) bis(benzoxazole). Synthesis of 3-(2-Hydroxynaphthol) benzoxazole.

    статья (395,8 K)
  • 279. Synthesis and antiviral activity of [(9-R1-10-R2-3-R-2-OXO-2H-[1,2,4]-triazino[2,3-c]quinazolin-6-YL)thio] acetamides derivatives with the fragments of carcass amines

    Alkylation of potassium 9-R1-10-R2-3-R-2-oxo-2Н-[1,2,4]triazino[2,3-с]quinazolin-6-thiolates by N-cycloalkyl-(cycloalkylaryl-)-2-chloracetamides. Analizes of indicators of the antiviral activity of compounds 3.2 and 3.14 against influenza type A H3N2.

    статья (530,2 K)
  • 280. Synthesis and biological activity of 3,4-dimethylphenyloxamoyl aminoacids and their salts with D(+)-glucosamine

    Convenient method of synthesis of optically active oxamoylaminoacids. Compounds have significant hepatoprotective, antiinflammatory and immunodepressant activities with low toxicity. Influence of investigated sudstances on rarametrs of specific immunity.

    статья (133,8 K)
  • 281. Synthesis and characterization of NA-JBW zeolite structure from metakaolin

    Obtaining JBW zeolite from hydrogels under hydrothermal conditions by alkaline reaction using NaOH as an activating agent. Orthorhombic space group Pmc21 with unit cell parameters, X-ray powder diffraction. Comprehensive study of the synthetic zeotype.

    статья (748,3 K)
  • 282. Synthesis and characterization of two coumarin fluorescent dyes containing a chalcone moiety

    The technology for the synthesis of two coumarin-chalcone hybrids by means of Kleisen-Schmidt condensation between 3-acetylcoumarin with benzaldehyde and 4-chlorobenzaldehyde, respectively. Method of identification and control of a chemical process.

    статья (197,3 K)
  • 283. Synthesis and complexity of new ligand with mercurysalt(ii)

    The syntheses of a new ligand: di (Furanyl Methylene hydrazono Ethyl) Benzene. It's structure, spectroscopy methods (IR, 13C NMR). Synthesizing of the complex by reactance the ligand with HgCh. Calcination process from mono nuclear complex, electrolyte.

    статья (1,1 M)
  • 284. Synthesis and crystal structure of an Ag(I) complex of composition (C9H7N(C3H5))2[AgBr2]Br(H2O)2

    Coordination behavior of Ag (I) with cations of N-allyl quinolinium. Synthesis of N-allyl quinolinium bromide. Determination of the structure of the x-ray crystal. Bromine ions of the second crystallographic type. Study silver nitrate compounds.

    статья (428,7 K)
  • 285. Synthesis and diuretic activity of 2-(5-(phenoxymethyl)-4-r1-1,2,4-triazole-3-ylthio)acetic acids and their salts

    Drugs based on the 1,2,4-triazole have a wide spectrum of biological activities. They are effective cardioprotectors, hepatoprotectors, anti-oxidants. Compounds with strong diuretic activity have been found among the newly synthesized compounds.

    статья (377,6 K)
  • 286. Synthesis and electrooptical properties of side-chain polymethacrylates and polycomplexes containing azobenzene moieties with different length Spacers

    The structure of the metal-containing azopolymers with electro-optical properties depending on the length of the spacer. Effect of electric field on absorption of metal-containing azopolymers. Reorientation of the dipole moments azobenzene groups.

    статья (168,1 K)
  • 287. Synthesis and modification of 2-(coumarin-3-yl)-3,4,5,6,7,8-hexahydropyrido [4',3':4,5]thieno[2,3-d]pyrimidin-4-ones

    Consideration the result of modification of 2-iminocoumarin-3-carboxamides with 2-amino-4,5,6,7-terahydrothieno[2,3-c]pyridin-3-carboxamides the novel 2-(coumarin-3-yl)-3,4,5,6,7,8-hexahydropyrido[4',3':4,5]thieno[2,3-d]pyrimidin-4-one derivatives.

    статья (111,4 K)
  • 288. Synthesis and study of antimicrobial properties of surfactants on the basis of cotton-seed oil, methyl diethanolamine and orthophosphoric acid

    To study antimicrobial properties of the synthesized surfactants, the method of consequent dilution was used. The experiments were carried out in the test tubes contained a surfactant at different concentrations and 1 ml of the physiological solution.

    статья (1,0 M)
  • 289. Synthesis and toxicity of Di-Na_salt of 2-(pyridine-4-iltio) succinic acid

    Search of bioactive substances containing in the molecule a heterocycle and a deputy with high antioxidant properties such as succinic acid. Antibacterial and cytotoxic action of Di-Na-salt. Methods of di-Na-salt of 2-(pyridine-4-iltio)succinic.

    статья (548,5 K)
  • 290. Synthesis of benzylidene and azocontaining polymers for photophisical application

    The polymers built with the use of the free radical polymerization of methacrylic monomers incorporating an azobenzene side-group and monomers with benzylidene fragments. The results of photochemical and optical activities of the corresponding elements.

    статья (288,8 K)
  • 291. Synthesis of cobalt (II) complex with new ligand di (furanyle methylene hydrazono) 1.2- di acetyle hydrazine

    Study of the synthesis of complexes of diacetylhydrazine with hydrazine hydrate. Carrying out the reaction of the ligand with cobalt in the presence of salts of metal chloride and furfural. Condensation of diacetylhydrazine with hydrazine monohydrate.

    статья (838,5 K)
  • 292. Synthesis of n-benzoyl-n’-(9,10-dioxo-9,10-dihydroanthacen-1-yl) thioureas and quantum-chemical analysis of the reaction passing

    Study the interaction of an order of amino-anthraquinones with benzoylisothiocyanate. The process of obtaining the formation of new N-benzoyl-N '- (9,10-dioxo-9,10-dihydroanthacen-1- yl) -thioureas. Quantumchemical analysis of the passing reaction.

    статья (314,6 K)
  • 293. Synthesis of new n-aryl-2-[(4-amino-4H-1,2,4-triazolo-[4,3-b]pyradazin-3yl)thio] acetamide derivatives

    Prepared of n-aryl-2-[(4-amino-4H-1,2,4-triazol-3yl)thio] acetamides by interaction of amino-1,2,4-triazolyl-3thiol with n-aril-2-chloroacetamides and formation of n-aryl-2-[6,8-dimethyl[1,2,4]triazolo[4,3-b]pyradazin-3-yl)thio]acetamide derivatives.

    статья (93,9 K)
  • 294. Synthesis of novel surface active methacrylate monomers based on e-caprolactone

    Investigation of the reaction of e-caprolactone with methacrylic acid. Synthesis of the compound chloride with polyethylene glycol ether. Peculiarities of surface active methacrylate monomer. Surface tension in aqueous solution in contact with air.

    статья (196,5 K)
  • 295. Synthesis of Perfluoroalkyl Heterocycles Using Perfluoroolefins Containing a Reactive Group at the Double Bond

    Reactions of Thiocyanate and Isothiocyanate Derivatives of Fluoroolefins with N-Nucleophilic Reagents. The Influence of the N-Nucleophile on the Construction of Six-Membered Heterocycles. The Use of Fluoroolefins with a Carbonyl-Containing Substitutent.

    статья (1,2 M)
  • 296. Synthesis of silicas with carboxyl functionality using template method

    Analysis of the method of synthesis of new materials with carboxylic acid groups, based on the template method, was developed. The efficiency of this methodology was demonstrated by powder x-ray diffraction, infrared spectroscopy and thermal analysis.

    статья (168,1 K)
  • 297. Synthesis of sodium and potassium alkoxides using electrochemical methods

    The basic properties of alkoxides. Production technology of alkali metals alkoxides. Direct Synthesis in the Interaction of Metal and Alcohol. Interaction Metals Oxides and Hydroxides with Alcohols. Exchange reactions with alcohols, transesterification.

    статья (376,3 K)
  • 298. Synthesis of some novel thiazolo[4,5-b]pyridines and their tuberculostatic activity evaluation

    The efficient synthetic protocol for aminomethylation proceeding was developed which led to obtaining a series of novel 3-(phenylamino)-methyl derivatives of 5,7-dimethyl-6-phenylazo-3Н-thiazolopyridin-2-one. The conditions for aminomethylation reaction.

    статья (120,4 K)
  • 299. Technetium and rhenium pentacarbonyl perchlorates

    Сomparative analysis the chemistry of technetium and rhenium сarbonyl perchlorates [M(ClO4)(CO)5]. The descriptions of their molecular structure, physical properties, types of materials, methods and procedures for their synthesis and reactivity.

    статья (812,0 K)
  • 300. Template Synthesis of MoN Superconducting Nanowires

    New facile method for the controllable synthesis of high quality single-phase nanowires with from nanowires templates. Detailed characterization of the superconducting and transport properties of nanowires. Synthesis of porous nanowires and nanotubes.

    статья (604,6 K)

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