Abstract
A transparent CH3SiO3/2 gel and an opaque one have been prepared from methyltriethoxysilane. Al(acac)3 is added to obtain the transparency. The two gels are studied by XRD, NMR and infrared spectroscopy. Some amount of silanols remains in the form of T2(CH3SiO(OH)) in the transparent gel, but few in the opaque gel. There is a diffraction peak reflecting intermolecular correlation in the XRD curves, which appears broader at a lower angle in the transparent gel than in the opaque gel. These results are discussed by assuming a larger hindrance in polymerization of silanols in the transparent gel.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
S. Sakka, Y. Tanaka, and T. Kokubo, J. Non-Cryst. Solids 82, 24 (1984).
M. Wada, K. Kamiya, and H. Nasu, Phys. Chem. Glasses 33, 77 (1992).
Y. Haruvy, A. Heller, and S.E. Webber, Supramolecular Architecture (Am. Chem. Soc., 1992), chap. 28.
K. Izumi, H. Tanaka, Y. Uchita, N. Tohge, and T. Minami, J. Non-Cryst. Solids 147/148, 486 (1992).
Y. Abe, H. Hatano, and T. Gunji, J. Polym. Sci. Part A 33, 751 (1995).
K. Kamiya, T. Yoko, T. Sano, and K. Tanaka, J. Non-Cryst. Solids 119, 14 (1990).
Z. Zhnag, Y. Tanigami, and R. Terai, J. Non-Cryst. Solids 191, 304 (1995).
Z. Zhang, Langmuir 13, 473 (1997).
Z. Zhang and S. Sakka, (submitted for publication).
H. Zhang and C.G. Pantano, J. Am. Ceram. Soc. 73, 958 (1990).
M. Voronkov and V.I. Lavrent'yev, Top. Curr. Chem. 102, 199 (1980).
K. Larsson, Arkiv Kemi 16, 203 (1960).
A.J. Barry, W.H. Daudt, J.J. Domicone, and J.W. Gilkey, J. Am. Chem. Soc. 77, 4248 (1955).
K. Larsson, Arkiv Kemi 16, 209 (1960).
Z. Zhang, H. Wakabayashi, Y. Tanigami, and A. Konishi, (Am. Ceram. Soc., 1998) Proc. of 18th International Conference on Glasses.
F.L. Galeener, Phys. Rev. B 19, 4292 (1979).
R.A.B. Devine, J. Vac. Sci. Technol. A6, 3154 (1988).
N. Wright and M.J. Hunter, J. Am. Chem. Soc. 69, 803 (1947).
J.F. Brown, Jr., J. Am. Chem. Soc. 87, 4317 (1965).
Rights and permissions
About this article
Cite this article
Zhang, Z., Wakabayashi, H. & Akai, T. Structural Study of Al(acac)3 Catalyzed CH3SiO3/2 Gel. Journal of Sol-Gel Science and Technology 12, 153–158 (1998). https://doi.org/10.1023/A:1008628332248
Issue Date:
DOI: https://doi.org/10.1023/A:1008628332248