Hostname: page-component-78c5997874-v9fdk Total loading time: 0 Render date: 2024-11-18T15:07:08.474Z Has data issue: false hasContentIssue false
  • English
  • Français

Structure/Property Behavior of Organic-Inorganic Semi-IPNS

Published online by Cambridge University Press:  10 February 2011

A. B. Brennan  and
T. M. Miller
A. B. Brennan
Affiliation:
Department of Materials Science and Engineering, University of Florida, Gainesville, FL 32611
T. M. Miller
Affiliation:
Department of Materials Science and Engineering, University of Florida, Gainesville, FL 32611
Get access

Abstract

Ongoing work in our laboratories continues to demonstrate the unique properties that can be developed by the generation of a glassy semi-interpenetrating network (SIPN) within an elastomeric-based hybrid organic-inorganic composite. The hybrids are synthesized by the acid catalyzed sol-gel-processing of triethoxysilane end-capped poly(tetramethylene oxide) (PTMO) and tetraethoxysilane (TEOS) in an alcoholic solution. The SIPNs are then created by swelling these hybrids with methacrylic acid (MAA) and then gamma-polymerizing the monomer in-situ. The resulting materials exhibit excellent optical transparency and significantly improved toughness. This paper reports on the effect of inorganic loading upon the mechanical properties of acid catalyzed hybrid composites. The results demonstrate that as the amount of TEOS added to the sol prior to gelation increases the elongation-to-break decreases and the stress-to-break increases. Similarly, the post-yield stress drop and post-yield elongation prior to strain hardening increase with increasing inorganic loading. Atomic force microscopy and small angle X-ray scattering data is presented which substantiates the morphological model developed to explain the mechanical response.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 435: Symposium V – Better Ceramics Through Chemistry VII , 1996 , 155
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. Schmidt, H. and Wolter, H., J. Non-Cryst. Solids 121, p. 428 (1990).Google Scholar
2. Popall, M., Meyer, M., Schmidt, H. and Schulz, J., Mater. Res. Soc. Symp. Proc. 180, p. 995 (1990).Google Scholar
3. Tamami, B., Betrabet, C. and Wilkes, G.L., Polym. Bull. 30, p. 39 (1993).Google Scholar
4. Sun, C.C. and Mark, J.E., Polymer 30, p. 104 (1989).Google Scholar
5. Brennan, A.B., Wang, B., Rodrigues, D.E. and Wilkes, G.L., J. Inorgan. Organomet. Polym. 1, p. 167 (1991).Google Scholar
6. Rodrigues, D.E., Brennan, A.B., Betrabet, C., Wang, B., and Wilkes, G.L., Chem. Mater. 4, p. 1437 (1992).Google Scholar
7. Landry, C.J.T., Coltrain, B.K., Wesson, J.A., Zumbulyadis, N. and Lippert, J.L., Polymer 33, p. 1496 (1992).Google Scholar
8. Sur, G.S. and Mark, J.E., Eur. Polym. J. 21, p. 1051 (1985).Google Scholar
9. Deng, Q., Mauritz, K.A. and Moore, R.B., Hybrid Organic-Inorganic Composites, edited by Mark, J.E., Lee, C.Y-C. and Bianconi, P.A. (ACS Symp. Series 585, 1995) p. 66.Google Scholar
10. Sakka, S. and Kamiya, K., J. Non-Cryst. Solids 48, p. 31 (1982).Google Scholar
11. Brinker, C.J., Keefer, D.K., Schaefer, D.W., Assink, R.A., Kay, B.D. and Ashley, C.S., J. Non-Cryst. Solids 63, p. 45 (1984).Google Scholar
12. Brinker, C.J. and Scherer, G.W., J. Non-Cryst. Solids 70, p. 301 (1985).Google Scholar
13. Brennan, A.B. and Wilkes, G.L., Polymer 32, p. 733 (1990).Google Scholar
14. Huang, H.H., Orler, B. and Wilkes, G.L., Macromolecules 20, p. 1322 (1987).Google Scholar
15. Saegusa, T., J. Macromol. Sci. -Chem. A 28, p. 817 (1991).Google Scholar
16. Huang, H.H., Glaser, R.H. and Wilkes, G.L., Inorganic and Organometallic Polymers, Edited by Zeldin, M., Wynne, K.J. and Allcodk, H.R. (ACS Symp. Ser 360, 1987) p.354 Google Scholar
17. Wilkes, G.L., Brennan, A.B., Huang, H.H., Rodrigues, D.E. and Wang, B.W., Mater. Res. Soc. Symp. Proc. 15, p. 171 (1990).Google Scholar
18. Brennan, A.B., Miller, T.M. and Vinocur, R.B., Hybrid Organic-Inorganic Composites, edited by Mark, J.E., Lee, C.Y-C. and Bianconi, P.A. (ACS Symp. Series 585, 1995) p. 142.Google Scholar
19. Brennan, A.B. and Miller, T.M., Chem. Mater 6, p. 262 (1994).Google Scholar
20. Glaser, R.H., Wilkes, G.L. and Bronniman, C.E., J. Non-Cryst. Solids 113, p. 73 (1989).Google Scholar
21. Toki, M., Chow, T,Y., Ohnaka, T., Samura, H. and Saegusa, T., Poly. Bull. 29, p. 653 (1992).Google Scholar