Synthesis and characterisation of SiO2/POSS hybrid systems obtained using the mechanical method
More details
Hide details
Poznan University of Technology
Adam Mickiewicz University
Teofil Jesionowski   

Poznan University of Technology, Institute of Chemical Technology and Engineering, M. Sklodowskiej–Curie 2, PL-60965, Poznan, Poland
Publication date: 2012-01-01
Physicochem. Probl. Miner. Process. 2012;48(1):181–192
Hybrid systems of silica and polyhedral oligomeric silsesquioxanes (SiO2/POSS) were obtained by the mechanical method with the use of spherical or hydrated silicas, precipitated in the emulsion or aqueous environment. The SiO2 surface was modified with the following cage silsesquioxanes: hepta(isobutyl)2-triethoxysilylethyloctasilsesquioxane, octakis ({3-glycidoxy-propyl}dimethylsiloxy)octasilsesquioxane and octakis ({3-methacryloxypropyl} dimethylsiloxy)-octasilsesquioxane. The nanofillers obtained were subjected to thorough dispersive analysis (NIBS method) and morphological analysis (transmission electron microscopy). Their wettability in water systems was evaluated and their adsorption activity was characterised by determination of the specific surface area BET, pore diameters and volume. Thermal stability of the nanofillers was checked. The effect of surface modification on the degree of coverage was assessed on the basis of elemental analysis.