Properties, porous, organically modified silica

Chemistry and Properties of Porous, Organically Modified Silica... 

Sol-gel techniques were used to prepare porous, organically modified silica materials. The introduction of organic groupings was carried out with alkoxysilanes as precursors methyl and propyl amino groups were used. The results show that high-porosity materials can be synthesized the microstructure strongly depends on reaction conditions such as composition, solvent, catalyst type, and concentration. Microstructure tailoring affects mechanical as well as adsorption properties, and custom-made materials such as abrasives and adsorbents with special properties were synthesized. 

The chemistry and surface properties of porous and non-porous silica were extensively reviewed [8,9]. We have organized this review in several sections starting with a very brief account of mesoporous solids synthesis and their main structural characteristics (see the section on Mesoporous SUica ). This section also comments on the preparation of chemically modified solids and their properties as well as how the mesoporous structure can be controlled. We also present some theoretical results obtained through computer simulations. Those smdies model the sohd structure of sdica that will be employed in other simulations. Section 111 is devoted to the... 

---