Dynamical scaling in fractal structures in the aggregation of tetraethoxysilane-derived sonogels

Dynamical scaling properties in fractal structures were investigated from small-angle X-ray scattering data of the kinetics of aggregation in silica-based gelling systems at different temperatures. The experimental findings are in notable agreement with the dynamical scaling properties.

Structure and aggregation kinetics of vinyl­triethoxysilane-derived organic/silica hybrids

The aggregation kinetics of solutions of vinyltriethoxysilane-derived organic/silica species were studied by small-angle X-ray scattering (SAXS) in a strongly basic medium. The SAXS intensity was analysed using a modified Sharp-Bloomfield global function and its evolution was found to be compatible with the growth, coiling and branching of the polymeric macromolecules in solution.