Abstract
Acidic nonionic microemulsions have been used for gelation of tetraethyl orthosilicate (TEOS). It is shown that the release of ethanol will expand the microemulsion region after reaction. The gelation in the nonionic microemulsion (without hydrocarbon) is strongly dependent on surfactant and water. The gelation time strongly increases when surfactant is in excess of 22% by weight. The NMR spectra revealed only a minor reorganization during 4 months of the ethoxy attached to the Si atom for solutions with insufficient amount of water for gelation. This did not change with time (up to 4 months). All-in-all, the reactions with TEOS in acidic microemulsions are similar to those in organic solvents.
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References
Brinker CJ, Scherer GW (1990) Sol-Gel Science, The Physics and Chemistry of Sol-Gel Processing. Academic Press, New York
Sol-Gel Technology for Thin Films, Fibers, Performs, Electronics and Speciality Shapes. LC Klein (ed.) (1988) Noyes Publications, New Jersey
Sakka S, Kozuka H, Adachi T (1988) J Non-Cryst Solids 102:263
Scherer GW, Pardanek SA, Swiatek RM (1988) J Non-Cryst Solids 107:14
Cheng JJ, Wang D-W (1988) J Non-Cryst Solids 100:288
Shukla BS, Johri GP (1988) J Non-Cryst Solids 101:263
Friberg SE, Yang C-C (1988) In: Doyle FM, Raghaven S, Somasundaran P, Warren GW (eds.) Innovations in Materials Processing Using Aqueous, Colloid and Surface Chemistry. The Minerals, Metals and Materials Society, 181
Friberg SE, Yang C-C, Sjöblom J (1992) Langmuir 8:372
Friberg SE, Amran A, Yang C-C, Sjöblom J, Colloids Surfaces (in press)
Saeten, JO, Førdedal H, Amran A, Friberg SE, J Colloid Interface Sci (in press)
Saeten JO, Selle MH, Sjöblom J, Friberg SE, Gestblom B (1991) J Solution Chem 20:12
Irwin AD, Holmberg JS, Jonas J (1988) J Non-Cryst Solids 101:249
Staito H, Shinoda K (1970) J Colloid Interface Sci 32:649
Shinoda K (1972) J Colloid Interface Sci 34:278
Shinoda K, Kunieda H (1973) J Colloid Interface Sci 42:381
Shinoda K, Friberg SE (1975) Adv Colloid Interface Sci 4:281
Schott H, Royce AE (1984) J Pharm Sci 73:793
Sjöblom J, Söderlund H, Wärnheim T (1986) In: Setton R (ed.) Chemical Reactions in Organic and Inorganic Constrained Systems. D. Reidel Publishing Company, 305
Gestblom B, Sjöblom J (1988) Langmuir 4:360
Lindman B, Stilbs P, Moseley ME (1981) J Colloid Interface Sci 83:569
Stilbs P, Moseley ME, Lindman B (1980) J Magn Reson 40:401
Stilbs P, Rapacki K, Lindman B (1983) J Colloid Interface Sci 95:583
Wärnheim T, Sjöblom E, Henriksson U, Stilbs P (1984) J Phys Chem 88:5420
Nilsson PG, Lindman B (1982) J Phys Chem 86:271
Nilsson PG (1984) Thesis, University of Lund, Lund
Maxwell JC (1982) A Treatise on Electricity and Magnetism. Clarendon, Oxford
Wagner KW (1914) Arch Electrotech 3:100
Sillars RW (1937) Proc Inst Elec Engs London 80:378
Sjöblom J, Gestblom B, In: Lindman B, Friberg S (eds.) Organized Solutions. Marcel Dekker (in press)
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© 1992 Dr. Dietrich Steinkopff Verlag GmbH & Co. KG
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Selle, M.H., Sjöblom, J., Friberg, S.E., Young, T., Yang, CC. (1992). Studies of gelation of tetraethoxysilane in w/o microemulsions stabilized by nonionic surfactants NMR and phase equilibria. In: Sjöblom, J., Lindman, B., Stenius, P. (eds) Advances in Colloid Structures. Progress in Colloid & Polymer Science, vol 88. Steinkopff. https://doi.org/10.1007/BFb0114416
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DOI: https://doi.org/10.1007/BFb0114416
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