Open AccessSome Peculiarities of Silica Modification Under High Reagent Pressure. I. Methodological Aspects
Author(s) -
В. В. Сидорчук,
В. А. Тертых,
Р. Лебода,
Zbigniew Hubicki
Publication year - 1995
Publication title -
adsorption science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.682
H-Index - 36
eISSN - 2048-4038
pISSN - 0263-6174
DOI - 10.1177/026361749501200307
Subject(s) - reagent , chemistry , fumed silica , adsorption , surface modification , differential thermal analysis , chemical engineering , chemical modification , silica gel , porosity , chromatography , organic chemistry , polymer chemistry , physics , engineering , diffraction , optics
The effect of the following factors on the chemical and geometrical modification of aerosilogel (prepared from aerosil) was studied: the physicochemical characteristics of the modifying reagent pressures, the preparation conditions for the silica surface, the reaction temperature, the reagent pressures, the duration of treatment and the method employed for the modification process. The course of the surface reaction was followed by IR spectroscopy, differential thermal analysis and adsorption. During high-pressure modification, the geometrical parameters of the porous silica structure may be changed.