Organosiloxane and monoethanolamine transformations on fumed silica and alumina-silica surfaces

✍ Scribed by A.A. Chuiko; G.Ya. Guba; V.A. Pokrovskii; M.I. Teretz

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 298 KB
• Volume: 106
• Category: Article
• ISSN: 0927-7757
• DOI: 10.1016/0927-7757(95)03284-3

✦ Synopsis

We have performed thermogravimetric, infrared spectroscopic and mass spectroscopic studies of the structure and thermal transformations of surface groups formed in the process of chemical modification of fumed silica and aluminasilica by monoethanolamine and organosiloxanes. Thermal transformations of organosiloxanes and monoethanolamine on fumed silica and on alumina-silica surfaces have been shown to occur through different paths due to variation of the nature of the surface active sites of oxides under investigation.