Hostname: page-component-7b7567c8c-fvjsw Total loading time: 0 Render date: 2026-11-14T21:31:37.949Z Has data issue: false hasContentIssue false
  • English
  • Français

Film Processing and Applications for Rigid-Rod Polymers

Published online by Cambridge University Press:  26 February 2011

Richard W. Lusignea
Richard W. Lusignea*
Affiliation:
Foster-Miller, Inc., Waltham, MA 02254
Get access

Abstract

High strength, high modulus (2 GPa, 270 GPa, respectively) films have been produced with controllable planar orientation. Films were extruded from high viscosity nematic polymer solutions using rigid-rod aromatic heterocyclic polymers. Novel solution processing and treatment were used to control orientation, microfibrillar structure and texture, and physical properties. The coefficient of thermal expansion of these films was tailored by orientation and addition of secondary materials. This resulted in applications for dimensionally stable electronic substrates and structures for spacecraft. Other applications include high temperature barrier films, thin-walled structures, lightweight capacitors, high temperature insulation and cryogenic tanks.

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.)

Article purchase

Temporarily unavailable

References

REFERENCES

1. Helminiak, T.E., Benner, C.L., and Arnold, F.E., in Polymer Preprints, 16, (2), 1975, p. 659.Google Scholar
2. Helminiak, I.E., in Am. Chem. Soc. Div. of Organic Coatings and Plastics Chem. Preprints, 40, 1979, p. 475.Google Scholar
3. Adams, W.W., and Eby, R.K., MRS Bulletin, Vol. 12, No. 8, pp. 22–26.CrossRefGoogle Scholar
4. Wolfe, J.R., Loo, B.H., and Arnold, F.E., in Macromolecules, Vol. 14, 4, 1981, p. 915.CrossRefGoogle Scholar
5. Wolfe, J.R. and Arnold, F.E. in Polymer Preprints, 18, (2), 1971, p. 414.Google Scholar
6. Wolfe, J.F. in AFWAL-TR 87-0017, December 1986.CrossRefGoogle Scholar
7. Choe, E.W. and Kim, S.N. in Macromolecules, 14, August 1981, p. 920.CrossRefGoogle Scholar
8. Chenevy, E.C. in AFWAL--lR--80-4142, December 1982.Google Scholar
9. Helminiak, T.E., National Symposium on Polymers in the Service of Man, 16, 1980, p. 86.Google Scholar
10. Uy, W.C. in AFWAL-TR--80-4142.Google Scholar
11. Allen, S.R., Filippov, A.G., Farris, R.J., lhomas, E.L., Wong, C. -P., Berry, G.C., and Chenevey, E.C. in Macromolecules, 14, 1981, p. 1135.CrossRefGoogle Scholar
12. Allen, S.R., Filippov, A.G., Farris, R.J. and Thomas, E.L. in J. Appli. Polym. Sci., 26, 1981, p. 291.CrossRefGoogle Scholar
13. Thomas, E.L., Minter, J.R. and Shimamura, K. in J. Mat. Sci., 16, 1981, p. 3303.CrossRefGoogle Scholar
14. Thomas, E.L., Farris, R.J. and Hsu, S.L. in AFWAL-TR-85-,-4151, June 1986.Google Scholar
15. Lusignea, R.W., Racich, J., Ishida, W. in AFWAL---R-86-4040, August 1986.Google Scholar
16. Lusignea, R.W. and Kovar, R.F. in AFWAL-IR--87-4106, December 1987.Google Scholar
17. Lusignea, R.W., Piche, J., and Mathisen, R. in ACS Preprints, Vol. 59, p. 873.Google Scholar
18. Pottick, L.A. and Farris, R.J. in 1985 Nonwovens Symposium, April 1985, p. 65–71.Google Scholar
19. Cohen, Y. in AFWAL Technical Report 87-4030, April 1989.Google Scholar
20. Cohen, Y. and Thomas, E.L. in Polym. Engr. and Sci., 25, 1093, 1985.CrossRefGoogle Scholar
21. Kovar, R.F. and Lusignea, R.W. in Ultrastructure Processing of Advanced Ceramics, Wiley, 1988, pp. 715–724.Google Scholar
22. Haghighat, R.R., Kovar, R.F. and Lusignea, R.W., Materials Research Society Symposium Proceeding, Vol. 121, 1988, pp. 755–760.CrossRefGoogle Scholar
23. lhomas, E.L., Interim Report, Contract No. F33615--83-C-5120.Google Scholar
24. Adams, W.W., Private Communication.Google Scholar
25. Porter, R.S. et al. , Journal of Thermal Analysis, Vol. 8, 1975, pp. 547–555.CrossRefGoogle Scholar