Kinetic regularities of the early stages of sol-gel process in tetraethoxysilane-based systems

Research kinetic characteristics of the initial stages of the processes of acid hydrolysis and condensation in the sol-gel systems tetraethoxysilane, ethanol-water by gas chromatography. Using quantum-chemical calculations hydrolysis parameters.

Подобные документы

  • The study of ion-exchange sorption of CS+ and sr2+ on clinoptilolite in original, modified e- and G-irradiation, decationated with hydrochloric acid, and the cation-contained form, the definition of the coefficient of sorption and distribution of KD, KS.

    статья, добавлен 02.04.2014

  • Chemical properties of organic compounds derived from ammonia. The mechanism of substitution of hydrogen for hydrocarbon radicals within molecules. Classification of the most common amines. Familiarization with the formula for the secondary amine.

    презентация, добавлен 06.12.2016

  • Synthesis of a methacrylic azomonomers based on para-aminoacetanilide to obtain functionalized polymers for orientation of liquid crystals. The kinetics of polymerization of synthesized azomonomers. Constants of thermo-induced radical polymerization.

    статья, добавлен 21.12.2016

  • Determined of the dissociation (deprotonation) constants of flavones in water-methanol mixtures. Research of features hydroxyflavones, which have been the convenient models for exploration of the intramolecular proton transfer in the excited state.

    статья, добавлен 29.09.2016

  • Influence of the basic nature of finely dispersed microfillers on the kinetics of hydrate release and localization and the degree of its crystallization. Formation of contacts between particles of systems, including various modifications of gypsum.

    статья, добавлен 19.02.2021

  • Характеристика карвакролу щодо його біологічної активності, знаходження у природі та застосування, як компоненту кормових добавок для сільськогосподарських тварин та птиці. Методика екстракційної пробопідготовки кормової добавки Acid PlaTan Liquid.

    статья, добавлен 27.06.2020

  • Chemical derivatives of 1,2,4-thiazole as biologically active chemicals intended for the protection of plants for agricultural purposes, such as biocides and fungicides when preserving books. Impact of chemicals on humans, animals and the environment.

    статья, добавлен 21.07.2018

  • Study of ternary intermetallic compounds RxMyXz (R = rareearth Element, M = d-metal, X = p-metal). Results of identification of the new R-Au-Al compound. The starting materials for the synthesis of R-Au-Ga. Function of the profile form of pseudo-Voigt.

    статья, добавлен 23.02.2017

  • 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, добавлен 15.09.2014

  • 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, добавлен 05.03.2013

  • 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, добавлен 02.04.2014

  • Homogeneous precipitation synthesis of nanocomposites - activated carbon – zirconium(IV) oxide. Characterization of samples by x-ray diffraction analysis and electron microscopy. Sorption properties and the degree of extraction of phosphate ions.

    статья, добавлен 23.02.2016

  • Chemical hazards and toxic substances pose a wide range of health hazards (such as irritation, sensitization, and carcinogenicity) and physical hazards (such as flammability, corrosion, and explosibility). Explosives. Gases. Flammable liquids, solids.

    презентация, добавлен 18.09.2016

  • Analysis, synthesis and properties of six isomeric heterocyclic systems containing two fused rings of pyridine with different relative positions of the atoms of nitrogen - naphthyridines. Physicochemical properties and reactivity of naphthyridines.

    дипломная работа, добавлен 05.03.2013

  • Chemical identification of polymer additives and its significance for links in the plastics supply chain. The effect of additives on the properties of materials and on the cost of production of polymers. Quantitative determination of polymer additives.

    статья, добавлен 10.03.2019

  • Study of the electrochemical oxidation of methyl tert-butyl ether on micromodified and composite lead dioxide anodes. Anodic conversion of MTBE and electrochemical processes of water oxidation with formation of hydroxyl radicals and molecular oxygen.

    статья, добавлен 30.10.2016

  • 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, добавлен 23.02.2016

  • A new universal method of estimating the chemical shifts values of the methylene groups. Change the values of 1H and 13C each methylene group in the result of the conversion by replacing the long fragments –(CH2)K– and –(CH2)I– of the Vice alculated.

    статья, добавлен 23.02.2016

  • The results of treatment of solutions with high sulphates concentration and the high level of water hardness. Reduction of secondary pollution by chlorides through the integrated use of the hydrochloride of aluminum and sodium aluminate coagulants.

    статья, добавлен 23.02.2016

  • The environmental pollution as a phenomenon of great concern worldwide. Industrial wastewater samples. Biosorption experimental procedure. System design laboratory. Chemical and physical measurements. The efficiency of laboratory design, main results.

    статья, добавлен 10.03.2018

  • 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, добавлен 29.01.2017

  • 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, добавлен 05.03.2013

  • Study the process of liquid hydrocarbon oxidation. Chemical reaction of cyclohexane with the organic additives of different nature. Composition of products and speed of oxidation of toluene and p-xylene in the presence of binary liquid catalysts.

    статья, добавлен 23.02.2016

  • The graphene basic properties is given. The possible role of intrinsic and deliberately induced structural defects in electronic and chemical properties of graphene substrates. Optimized geometric structures for the Stone-Wales defect functionalized.

    статья, добавлен 02.04.2014

  • Depth profiles of the near-surface region and chemical composition for amorphous films deposited from Ge33As12Se55 bulk glasses and their changes resulting ageing under ambient conditions have been studied by the methods of Auger electron spectroscopy.

    автореферат, добавлен 02.04.2014

Работы в архивах красиво оформлены согласно требованиям ВУЗов и содержат рисунки, диаграммы, формулы и т.д.
PPT, PPTX и PDF-файлы представлены только в архивах.
Рекомендуем скачать работу и оценить ее, кликнув по соответствующей звездочке.