Synthesis and properties of an inorganic–organic hybrid prepared by the sol–gel method

Synthesis and Characterization of Mesoporous Hybrid Silica-Polyacrylamide Aerogels and Xerogels

“…These materials are of a potential interest for controlled release, smart membranes and many other applications. Maruszewski and coworkers [35] prepared a hybrid optical device, transparent, mechanically stable and non-porous by combining the sol-gel process with the photo-copolymerization of two organic monomers. Thermo-responsive silica-polyacrylamide hydrogels were synthesized by the research groups of Van Mele and Du Prez [36] by cross-linking the organic polymer chains with inorganic silica particles, leading to a semiinterpenetrating polymer network structure.…”

Preparation and optical properties of hybrid coatings based on epoxy-modified silane and rhodamine B

“…The important class of solid matrices for luminophores comprises silica, titania and silica-titania oxides obtained by the sol-gel technique [1]. The sol-gel materials have been investigated for various optical applications, such as anti-refractive coatings, planar optical waveguides, optical filters and optical sensors [2][3][4][5][6][7][8]. It has been demonstrated that silica, titania and silica-titania materials may be doped with rare-earth ions and organic dyes via the sol-gel techniques, the spin-top deposition [9] and the sonochemical method [10].…”

Designing Nanostructured Carbon Xerogels

“…Traditional inorganic gels based upon hydrolysis-condensation reactions of metal alkoxides are well known as a result of their high specific surface areas and their unique morphological and structural properties (De Sousa et al, 2001). Some of the precursors used for the preparation of such inorganic gels are aluminates, titanates and borates but the most frequently employed alkoxides are alkoxysilanes, leading to the extensively investigated silica gels (Mauritz, 1998;Zareba-Grodz et al, 2004). The reaction mechanism of silica gels is based on the hydrolysis of alkoxysilanes to yield silicic acid moities, Si(OH) 4 , which spontaneously condensate to generate, after a sequence of specific stages, the final silica gel consisting of siloxane groups (Si-O-Si) within its framework and silanol groups (Si-OH) on its surface (Salazar-Hernández et al, 2009).…”