Перегляд за темою "Surface chemistry of silica and related sorbents"

Результати 1-12 з 12

Adsorption and chemisorption of galactose oxidase on silica surface

Kondakova, L.V.; Yanishpolskii, V.V.; Tertykh, V.A. (Поверхность, 2002)

Experience accumulated over a number of years in developing of methods of immobilization of galactose oxidase from Fusarium graminearum on parent and modified silica matrices is analyzed. Sturdy adsorption of galactose ...
Adsorption of polyvinylpyrrolidone and polyoxyethylene by pure and mixed silicon, aluminium and titanium oxides

Voronin, E.F.; Guzenko, N.V.; Gun'ko, V.M.; Malysheva, M.L.; Pakhlov, E.M.; Eremenko, B.V.; Chuiko, A.A. (Поверхность, 2002)

Adsorption of polyvinylpyrrolidone (PVP) and polyoxyethylene (POE) from the aqueous solutions onto surfaces of individual and mixed silicon, titanium and aluminium oxides was studied. It was found that the values of polymer ...
Design of functionalized polysiloxanes: synthesis and study on sulfur-containing xerogels with mono- and bifunctional surface layer

Zub, Yu.L.; Melnyk, I.V.; Chuiko, A.A.; Cauzzi, D.; Predieri, G. (Поверхность, 2002)

Urea- and thiourea-containing trialkoxysilanes were prepared with a high yield and purity. By sol-gel processing of these precursors the new functionalized xerogels were synthesized and characterized by FTIR, elemental ...
Effect of chemical modification of silica surface with metal oxides on the thermal properties of adsorbed polydimethylsiloxane

Borysenko, M.V.; Bogatyrov, V.M.; Dyachenko, A.G.; Pokrovskiy, V.A. (Поверхность, 2002)

Temperature programmed desorption mass spectrometry, thermogravimetry and differential thermal analysis were used to investigate the thermal destruction of adsorbed polydimethylsiloxane (PDMS) in air and vacuum conditions. ...
Effect of precursor and surfactant nature on geometrical characteristics of mesoporous silicas

Pavlenko, A.N.; Yanishpolskii, V.V.; Tertykh, V.A.; Il'in, V.G.; Leboda, R.; Skubiszewska-Zieba, J. (Поверхность, 2002)

Bimodal mesoporous silicas and materials MCM-41 type were synthesized with the use as a template cationic surfactants distinguished by a length of the alkyl chain. Fumed silica, tetraethyl orthosilicate as well as of mixture ...
Electron spin resonance study on Mo-SiO₂ and Mo-TiO₂ with adsorbed benzene

Ignatovych, M.; Teslenko, V.; Eremenko, A.; Ogenko, V.; Chuiko, A. (Поверхность, 2002)

The study is devoted to ESR-investigation of the primary processes upon chemisorption of benzene molecules onto the molybdenum supported on dispersed SiO₂ and TiO₂ samples. It has been confirmed that benzene chemisorption ...
Mass-spectrometric study of thermal decomposition of some polyketides in condensed and adsorbed states

Kulik, T.V.; Galagan, N.P.; Pogorelyi, V.K.; Pokrovskiy, V.A. (Поверхность, 2002)

A study has been conducted on adsorption of semisynthetic flavonoid venoruton on the surface of highly dispersed silica (HDS) modified with polyvinylpyrrolidone (PVP). It has been found that an adsorption value of venoruton ...
Novel polyorganosiloxane xerogels with bifunctional ≡Si(CH₂)₃H/≡Si(CH₂)₃NH₂ surface layer

Melnyk (Seredyuk), I.V.; Zub, Yu.L.; Chuiko, A.A.; Van Der Voort, P. (Поверхность, 2002)

Novel polyorganosiloxanes gels with bifunctional (≡Si(CH₂)₃H/≡Si(CH₂)₃NH₂) surface layer have been prepared by a sol-gel technique using silane-ternary systems. The surface properties of the obtained gels are highly ...
Peculiarities of glucose oxidase adsorption by mesoporous aluminosilicates synthesized in presence of biotemplates

Smelaya, Z.V.; Goltsov, Yu.G. (Поверхность, 2002)

A study of glucose oxidase adsorption has been undertaken from a solution of the enzyme (0.125 mmol dm⁻³) in acetate buffer (pH 4) onto mesoporous aluminosilicates synthesized in the presence of biomolecules (lecithin, ...
Studies of adsorbed phenothiazine antidotes by temperature-programmed desorption with mass-spectrometric analysis

Kulik, T.V.; Galagan, N.P.; Pokrovskiy, V.A.; Khrapak, V.V. (Поверхность, 2002)

By spectrophotometric and kinetic methods of analysis a study has been made of adsorption of three antidotes of the phenothiazine series on the surface of fumed silica from water solutions. Physical and chemical parameters ...
Synthesis and physicochemical properties of silica gels with small additives of aluminium and zirconium ions

Bondar, L.А. (Поверхность, 2002)

The method of synthesis of silica gels containing small additives of Al and Zr ions was developed. The porous structure of the synthesized Al,Zr-silica gels has been characterized by the adsorption method. It was found ...
Theoretical analysis of thermal destruction of dimethyl phosphates immobilized on dispersed silica surface

Kukueva, V.V.; Kirilov, O.A.; Grebenyuk, A.G.; Lobanov, V.V. (Поверхность, 2002)

The calculations on the electronic and space structure have been carried out for both trimethyl phosphate molecule and that supported at silica surface within the frameworks of the SCF MO LCAO MNDO valence approximation. ...

Результати 1-12 з 12

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Перегляд за темою "Surface chemistry of silica and related sorbents"

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Перегляд за темою "Surface chemistry of silica and related sorbents"

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