| Abstract: | Two types of the organic-silica hybrid networks were prepared and their formation and structure were studied in dependence on reaction conditions. The silica phase was formed by the sol-gel process from tetraethoxysilane (TEOS) or alkoxysilane endcapped prepolymers. The organic phase was composed of linear poly(oxypropylene) chain or the epoxide network arising by curing the diglycidyl ether of Bisphenol A (DGEBA) with poly(oxypropylene)diamine. Fast development of the structure during polymerization was followed by the in-situ small-angle X-ray scattering measurement. One- and two-stage polymerization procedures result in formation of heterogeneous but optically transparent nanocomposites with different structures. |
