ISSN 0862-5468 (Print), ISSN 1804-5847 (online) 

Ceramics-Silikáty 57, (1) 58 - 65 (2013)


NEW APPROACH TO PREPARATION OF GELATINE/SiO2 HYBRID SYSTEMS BY THE SOL-GEL PROCESS
 
Pietras Przemyslaw 1, Przekop Robert 2, Maciejewski Hieronim 3,1
 
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

Keywords: Gelatine, Ethyl silicate, Sol-gel, Hybrid materials
 

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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