Hostname: page-component-586b7cd67f-rdxmf Total loading time: 0 Render date: 2024-11-29T01:06:15.888Z Has data issue: false hasContentIssue false
  • English
  • Français

Preparation of Polyimide-Silica Hybrid Materials by High Pressure-Thermal Polymerization

Published online by Cambridge University Press:  10 February 2011

Kevin Gaw ,
Hironori Suzuki ,
Mitsutoshi Jikei ,
Masa-aki Kakimoto  and
Yoshio Imai
Kevin Gaw
Affiliation:
Department of Organic and Polymeric Materials, Tokyo Institute of Technology, Meguro-ku, Tokyo 152, Japan
Hironori Suzuki
Affiliation:
Department of Organic and Polymeric Materials, Tokyo Institute of Technology, Meguro-ku, Tokyo 152, Japan
Mitsutoshi Jikei
Affiliation:
Department of Organic and Polymeric Materials, Tokyo Institute of Technology, Meguro-ku, Tokyo 152, Japan
Yoshio Imai
Affiliation:
Department of Organic and Polymeric Materials, Tokyo Institute of Technology, Meguro-ku, Tokyo 152, Japan
Get access

Abstract

Polyimide-silica hybrid materials were prepared via a modified sol-gel, high pressure-thermal polymerization procedure. Precursor monomer salts were made from ethanol soluble 2,5- diethoxycarboxyl terephthalic acid (p-PME) and either a disiloxanediamine, an aliphatic diamine (1,9 diaminononane) or combinations of the two. Solutions of tetramethoxysilane (TMOS) and monomer salt were transformed into a gel, dehydrated, and the resulting powders were subjected to high pressure and thermal polymerization and transformed into a polyimide-silica composite. By varying the TMOS content, and/or the siloxane to aliphatic diamine ratio., composites of 0 to 100 wt% SiO2 were made. The silica morphology changed significantly with siloxane/aliphatic PI ratio. Reaction mechanisms, thermal and physical properties and composite morphologies are discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 435: Symposium V – Better Ceramics Through Chemistry VII , 1996 , 165
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. Wang, B., Hedric, J.C., McGrath, J.E., Macromolecules, 24, 3449 (1991)Google Scholar
2. Morikawa, A., Iyoku, Y., Kakimoto, M., Imai, Y., Poly. J., 24, 107 (1992)Google Scholar
3. Wai, Y., Yang, D., Tang, L., Hutchins, M.K., J. Mater. Res., 8, 1151 (1993)Google Scholar
4. Schmidt, H., Wolter, H., J. Non-Cryst. Sol., 121, 428 (1990)Google Scholar
5. Gaw, K., Suzuki, H.,, Kakimoto, M., J. of Photopoly. Sci. and Tech., 8, 2, 144 (1995)Google Scholar
6. Papaspyrides, C.D., Polymer, 31, 490 (1990)Google Scholar
7. Stoffel, N.C., Kramer, E.J., Wolksen, W., Russell, T.P., Polymer, 34, 21, 4524 (1993)Google Scholar
8. Colvin, E., Silicon in Organic Synthesis (Butterworths Publ., London, 1981), p. 54 Google Scholar