Sono-Ormosils

It is possible to apply the sonogel approach in the field of OIHM based on ormosils (Chap. 13). This approach to these materials incorporates an organic phase, very commonly PDMS, in the inorganic precursor (TEOS or TMOS) sol in combination with sonication of the precursors, producing a sono-ormosil (also called hard ormosil) after gelation [41, 57-59]. The processing and properties of sono-ormosils and derived materials have been recently reviewed [60, 61]. 

The understanding of sol-gel structures has been approached from several points of view, from angstroms to microns, from atomistic descriptions explaining how the network is formed as well as the chemical composition of the nanoparticles, to the micrometric particle aggregation and pore description considering the particles as bulk matter. 

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Sono-ormosil Ormosil prepared by a sonogel approach, also called hard Ormosil. It incorporates an organic phase in the inorganic precursor sol in combination with sonication of the precursors... 

The density of sono-Ormosils was observed to be higher than for Ormosils produced by ordinary processes. Some samples demonstrated extremely low porosity and low specific siuTace area (Morita, 1992). 

Ahmad Z., SarwarM.I, Mark J.E. Thermal and mechanical properties ofaramid-based titania hybrid composites. J. Appl. Polym. Res. 1998 70 297-302 Ahmad Z., Wang S, Mark J.E. ACS Symposium Series, Vol. 585, J.E. Mark, C. Lee, P.A. Bianconi, eds. American Ceramic Society Pnblisher, 1994, pp. 291-296 Baney R.H., Itoh M., Sakakibara A, Suzuki T. Silsesquioxanes. Chem. Rev. 1995 95 1409-1430 Bescher E., Mackenzie J.D. Hybrid organic-inorganic sensors. Mater. Sci. Eng. 1998 C6 145-154 Bescher E., Hoshino Y., Nishizawa Y., Cool K, Mackenzie J.D. The role of Fe in the thermal stabilization of Ormosils. J. Sol-Gel Sci. Technol. 2003 26 297-301 Blanco et al. Microstractnral and mechanical properties of sono-Ormosils. J. Sol-Gel Sci. Technol. 1998 13 451-155... 

Garcia-Hemandez M., Jimenez-Rioboo R.J., Prieto C., Fuentes-Gallego J.J., Blanco E., Ramirez-del-Solar M. Study of the microstructure of sono-Ormosils. Boletin de la Sociedad Espanola de Ceramicay Vidrio 1997 36(2/3) 325-327... 

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