Kinetics of structuring in the sol-gel systems based on tetraethoxysilane with organic additives: II. Gels |
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| Authors: | T. G. Movchan T. V. Khamova O. A. Shilova E. V. Tarasyuk A. N. Potapov N. B. Ur’ev N. S. Klimenko V. V. Shevchenko |
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| Affiliation: | (1) Institute of Physical Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia;(2) Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences, ul. Odoevskogo 24/2, St. Petersburg, 199155, Russia;(3) Institute of Macromolecular Chemistry, National Academy of Sciences of Ukraine, Kharkovskoe sh. 48, Kiev, 02160, Ukraine |
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| Abstract: | This paper reports on the results of investigations into the rheological properties of gels that are prepared by aging sols based on water-alcohol solutions of tetraethoxysilane (TEOS) modified by a number of metal salts and organic polyhydroxyl compounds, such as glycerol, poly(ethylene glycol) (PEG-300), and hyperbranched aliphatic complex polyol polyethers (HBP-49, HBP-64). It is demonstrated that the strength of the gels formed can be controlled using these additives. |
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