Hostname: page-component-745bb68f8f-5r2nc Total loading time: 0 Render date: 2025-01-29T00:47:50.069Z Has data issue: false hasContentIssue false
  • English
  • Français

Preparation, Characterization and Properties of New Ion-Conducting Ormolytes

Published online by Cambridge University Press:  10 February 2011

K. Dahmouche ,
M. Atik ,
N. C. Mello ,
T. J. Bonagamba ,
H. Panepucci ,
M. Aegerter  and
P. Judeinstein
K. Dahmouche
Affiliation:
Instituto de Física de São Carlos, Universidade de São Paulo,CP 369, 13560-970, São Carlos-SP (Brazil)
M. Atik
Affiliation:
Instituto de Física de São Carlos, Universidade de São Paulo,CP 369, 13560-970, São Carlos-SP (Brazil)
N. C. Mello
Affiliation:
Instituto de Física de São Carlos, Universidade de São Paulo,CP 369, 13560-970, São Carlos-SP (Brazil)
T. J. Bonagamba
Affiliation:
Instituto de Física de São Carlos, Universidade de São Paulo,CP 369, 13560-970, São Carlos-SP (Brazil)
H. Panepucci
Affiliation:
Instituto de Física de São Carlos, Universidade de São Paulo,CP 369, 13560-970, São Carlos-SP (Brazil)
M. Aegerter
Affiliation:
Institut für Neue Materialen (INM), Im Stadtwald, Gebädude 43, D 66123, Saarbrücken (Germany)
P. Judeinstein
Affiliation:
Laboratoire de Chimie Structurale Organique, URA CNRS 1384, Université Paris-sud, 91405 Orsay (France)
Get access

Abstract

Two families of hybrid organic-inorganic composites exhibiting ionic conduction properties, so called ORMOLYTES (organically modified electrolytes), have been prepared by the sol-gel process. The first family has been prepared from a mixture of 3-isocyanatopropyltriethoxysilane (IsoTrEOS), O,O′ Bis (2-aminopropyl)polyethyleneglycol and lithium salt. These materials present chemical bonds between the organic (polymer) and the inorganic (silica) phases. The second family has been prepared by an ultrasonic method from a mixture of tetraethoxysilane (TEOS), polyethyleneglycol and lithium salt. The organic and inorganic phases are not chemically bonded. The Li+ ionic conductivity has been studied by AC impedance spectroscopy up to 100 °C. Values of aσ up to 10−4 Scm−1 have been found at room temperature. The conduction properties have been related to the materials structure using linewidth and relaxation times NMR measurements of 7Li between −100 °C and 90 °C. A systematic study has been done changing the lithium concentration, the polymer chain length and the polymer to silica weight ratio. The structures and the ionic conduction properties of both families are compared with emphasis on the nature of the bonds between the organic and inorganic components.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 435: Symposium V – Better Ceramics Through Chemistry VII , 1996 , 363
Copyright
Copyright © Materials Research Society 1996

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

1. Gray, F. M, ”Solid Polymer Electrolytes: Fundamental and Technological applications” (VCH publishers, New-York 1991).Google Scholar
2. Armand, M., Adv. Mater. 2, 278 (1990).Google Scholar
3. Ratner, M.A., Shriver, D.F., MRS Bull 39 (1989).Google Scholar
4. Judeinstein, P., Titman, J., Stamm, M. and Schmidt, H., Chem. Mater 6, 127 (1994).Google Scholar
5. Rodrigues, D.E., Brennan, A.B., Betrabet, C., Wang, B., Wilkes, G.L., Chem. Mater. 4, 1437 (1992).Google Scholar
6. Judeinstein, P., Brik, M. E, Bayle, J.P., Courtieu, J. and Rault, J., MRS Symposium Proceedings 346 (San Francisco 1994), 937.Google Scholar
7. Brik, M., Titman, J., Bayle, J.P. and Judeinstein, P., accepted in J.Polym. Sci. Polym. Phys. (1996).Google Scholar
8. Watanabe, M., Nagano, S., Sanui, K., Ogata, N., J. Power Sources 20, 327 (1987).Google Scholar
9. Tsuchida, E., Shigehara, K., Mol. Cryst. Liq. Cryst. 106, 361 (1984).Google Scholar
10. McCallum, J. R., Vincent, A.C. in ”Polymer Electrolytes Reviews”, edited by McCallum, J.R and Vincent, A.C (Elsevier, London, 1987), 23 Google Scholar
11. Giles, J. R, Booth, C., Mobbs, R. in ”6th International Symposium on Metallurgy and Materials Science, Transport-Structure Relations in fast Ion and Mixed Conductors”, edited by Hessel, F.W. (1985) 329.Google Scholar
12. Huang, X., Chen, L., Huang, H., Xue, R., Ma, Y., Fang, S., Li, Y., Jiang, Y., Solid State Ionics 51, 69 (1992).Google Scholar
13. Dahmouche, K., Atik, M., Mello, N.C., Bonagamba, T.J., Panepucci, H., Judeinstein, P. and Aegerter, M., accepted in J. of Sol-Gel Sci. and Technol. (1996).Google Scholar