Hostname: page-component-8448b6f56d-c4f8m Total loading time: 0 Render date: 2024-04-23T15:49:37.867Z Has data issue: false hasContentIssue false
  • English
  • Français

A novel bulk sol-gel process to prepare monolithic silica materials

Published online by Cambridge University Press:  31 January 2011

Ce Wang ,
Yahong Zhang ,
Yunfeng Lu  and
Yen Wei
Ce Wang
Affiliation:
Department of Chemistry, Jilin University, Changchun, People's Republic of China, 130023
Yahong Zhang
Affiliation:
Department of Chemistry, Jilin University, Changchun, People's Republic of China, 130023
Yunfeng Lu
Affiliation:
Department of Chemistry, Jilin University, Changchun, People's Republic of China, 130023
Yen Wei
Affiliation:
Department of Chemistry, Drexel University, Philadelphia, Pennsylvania 19104
Get access

Abstract

A bulk sol-gel process has been developed to prepare monolithic silica materials at room temperature. The process involves an acid-catalyzed hydrolysis of tetraethyl orthosilicate in tetrahydrofuran containing aqueous HC1 catalyst, followed by neutralization with carbonate salts, extraction with aliphatic nonpolar solvents, molding, gelation, and drying. This method shortens the processing time from weeks for the conventional sol-gel process to several days. The silica objects prepared from the process are transparent, crack-free, and of relatively low volume shrinkage (e.g., 52%) and high silica content (e.g., 82%).

Type
Articles
Information
Journal of Materials Research , Volume 14 , Issue 10 , October 1999 , pp. 4098 - 4102
Copyright
Copyright © Materials Research Society 1999

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1.Brinker, C.J. and Scherer, G.W., Sol-gel Science (Academic Press, Inc., New York, 1990), pp. 97–509.Google Scholar
2.Hench, L.L. and West, J.K., Chem. Rev. 90, 33 (1990).CrossRefGoogle Scholar
3.Mackenzie, J.D., J. Sol-Gel Sci. Technol. 8, 25 (1997).Google Scholar
4.Zarzycki, J., J. Sol-Gel Sci. Technol. 8, 17 (1997).Google Scholar
5.Kistler, S.S., J. Phys. Chem. 36, 52 (1932).CrossRefGoogle Scholar
6.Tewari, P.H., Hunt, Å.J., and Loffus, K.D., Mater. Lett. 3, 363 (1985).CrossRefGoogle Scholar
7.Hench, L.L., in Science of Ceramic Chemical Processing, edited by Hench, L.L. and Ulrich, D.R. (Wiley, New York, 1986), p. 52.Google Scholar
8.Adachi, T. and Sakka, S., J. Non-Cryst. Solids 99, 118 (1988).CrossRefGoogle Scholar
9.Wolfrum, S. M., J. Mater. Sci. Lett. 6, 706 (1987).CrossRefGoogle Scholar
10.Judeinstein, P. and Sanchez, C.J., J. Mater. Chem. 6(4), 511 (1996).CrossRefGoogle Scholar
11.Makenzie, J.D., J. Non-Cryst. Solids 48, 1 (1982).CrossRefGoogle Scholar
12.Brinker, C.J. and Scherer, G.W., J. Non-Cryst. Solids 70, 301 (1985).CrossRefGoogle Scholar
13.Yoldas, B.E., J. Mater. Sci. 14, 1843 (1979).CrossRefGoogle Scholar
14.Wei, Y., Jing, D.J., Yang, C.C., and Gu, W., J. Sol-Gel Sci. Technol. 7, 199–209 (1996).CrossRefGoogle Scholar
15.MacChesney, J.B., Johnson, D.W. Jr, Bhandarkar, S., Bohrer, M.P., Fleming, J.W., Monberg, E.M., and Trevor, D.J., J. Non-Cryst. Solids 226, 232 (1998).CrossRefGoogle Scholar
16.Rabinovich, E.M., Sol-Gel Technology for Thin films, Fibers Preforms, Electronic and Specialty Shapes (Noyes, Park Ridge, NJ, 1988), p. 260.Google Scholar
17.Corriu, R.J.P, Moreau, J.J.E, Thepot, P., Wong Chi Man, M., Chorro, C., Lere-Porte, J-P., and Sauvajol, J-L., Chem. Mater. 6(5), 640 (1994).CrossRefGoogle Scholar
18.Corriu, R.J.P and Leclercq, D., Angew. Chem., Int. Ed. Engl. 35, 1420 (1996).CrossRefGoogle Scholar
19.Dorn, R., Baumgartner, A., Gutu-Nelle, A., Rehm, W., Schneider, R., Schneider, S., and Haupt, H., Glastech. Ber. 60(3), 79 (1987).Google Scholar
20.Yoshida, K., Satoh, T., Enomoto, N., Yagi, T., Hiroshi, H., and Oku, M., Glass Sci. Technol. 69(12), 412 (1996).Google Scholar
21.Clasen, R., Glastech. Ber. 60, 125 (1987).Google Scholar
22.Clasen, R., in Ceramic Powder Processing Science, Proceedings of the 2nd International Conference On Powder Processing Science, Berchtesgaden, 1988, edited by Hausner, H., Messing, G.L., and Hirano, S. (Deutsch Keramische Gesellschaft, Koln, Germany, 1989), p. 633.Google Scholar
23.Bachmann, P.K., Geittner, P., Lydtin, H., Romanowski, G., and Thelen, M., IEE Conf. Publ. 292, 449 (1988).Google Scholar
24.Mori, T., Toki, M., Ikejiri, M., Takei, M., Aoki, M., Uchiyama, S., and Kanke, S., J. Non-Cryst. Solids 100, 523 (1988).CrossRefGoogle Scholar
25.Wang, C., Dong, L., Zhang, Y.H., Li, T.J., and Wei, Y., Polym. Prep. 39(2), 616 (1998).Google Scholar