Ceramics-Silikáty 57, (1) 58 - 65 (2013) |
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NEW APPROACH TO PREPARATION OF GELATINE/SiO2 HYBRID SYSTEMS BY THE SOL-GEL PROCESS
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Pietras Przemyslaw 1, Przekop Robert 2, Maciejewski Hieronim 3,1
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1 Faculty of Chemistry, A. Mickiewicz University, Grunwaldzka 6, 60-780 Poznan, Poland
2 Centre of Advanced Technology UAM, Grunwaldzka 6, 60-780 Poznan, Poland
3 Poznan Science and Technology Park of A. Mickiewicz University Foundation, Rubiez 46, 61-612 Poznan, Poland
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Keywords: Gelatine, Ethyl silicate, Sol-gel, Hybrid materials
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A new method of synthesis of a series of hybrid gelatine/silica systems, based on solgel technique, was developed in this
study which was aimed at achieving the maximum compatibility of the gelatine/silica systems prepared in a wide range of
gelatine-silica ratios (from 30 to 80 wt. % of gelatine). The systems were characterized by X-ray diffraction, SEM, TEM,
FT-IR, and TG techniques. The obtained materials showed a diverse structure due to the fact that a part of silica formed
a homogeneous composite with gelatine, while another part formed microspherical particles of complicated structure.
A possibility was tested for employing branched polyalkoxysiloxanes as crosslinkers in the preparation of gelatine-silica
hybrids. |
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