Hostname: page-component-8448b6f56d-gtxcr Total loading time: 0 Render date: 2024-04-20T02:31:41.267Z Has data issue: false hasContentIssue false
  • English
  • Français

The Synthesis and Characterization of Polybenzamides Containing Siloxanes.

Published online by Cambridge University Press:  26 February 2011

Robert J. Kumpf  and
Bernard Gordon III
Robert J. Kumpf
Affiliation:
Polymer Science Program, Department of Materials Science and Engineering, The Pennsylvania State University
Bernard Gordon III*
Affiliation:
Polymer Science Program, Department of Materials Science and Engineering, The Pennsylvania State University
*
**To whom correspondence should be addressed
Get access

Abstract

Three different kinds of siloxane-containing polybenzamide copolymers have been prepared: a series of siloxane-containing segmented copolymers; a siloxane-poly(benzamide) random copolymer; and a poly(benzamide) - poly(dimethylsiloxane) block copolymer. The structures of these copolymers were confirmed using diffuse reflectance FTIR spectroscopy. Dilute solution viscometery showed them to be high polymers. The thermal stabilities of these copolymers were studied using thermal gravimetric analysis. Incorporation of siloxane units via a phenyl link was found to not affect the inherent thermal stability of the poly(benzamide) chain. The solution phase behavior of these copolymers in DMAC/LiCl was studied using an optical microscope fitted with cross-polars. The segmented copolymers and the block copolymer exhibited lyotropic behavior, which was influenced by the amount of siloxane and the overall molecular architecture. Solutions of the random copolymer were isotropic at all concentrations studied.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 134: Symposium J – Materials Science and Engineering of Rigid-Rod Polymers , 1988 , 153
Copyright
Copyright © Materials Research Society 1989

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.)

Footnotes

*

Current Address: Central Research, Bayer AG, D4150 Krefeld- Uerdingen, Federal Republic of Germany

References

REFERENCES

1. Reinitzer Monatsch, 1888, 9, 421.CrossRefGoogle Scholar
2. Flory, P.J. Proc. Royal. Soc. London, 1957, A234, 60.Google Scholar
3. Flory, P.J. Proc. Royal Soc. London, 1957, A234, 73.Google Scholar
4. Kwolek, S.L. US patent 3,600,350 (1971).Google Scholar
5. Kwolek, S.L. US patent 3,671,542 (1972).Google Scholar
6. Dobb, M.G. McIntyre, J.E. Adv. Polym. Sci., 1984, 60&61.Google Scholar
7. Roviello, A.; Sirigo, A. J. Polym. Sci. Lett. Ed. 1975, 13, 455.CrossRefGoogle Scholar
8. Belgian patent 828,935.Google Scholar
9. Jackson, W.J.; Kuhfuss, H.F. J. Polym. Sci., Chem. Ed, 1976, 14, 2093.CrossRefGoogle Scholar
10. Kwolek, S.L., Morgan, P.W., Schaefger, J.R., “Encylopedia of Polymer Science of Technology”, V9, pl, 1988.Google Scholar
11. Ober, C. K., Jin, J., Lenz, R. W., Advances in Polymer Science, 1984, 54, 104.Google Scholar
12. Lenz, R. W. “Recent Advances in Liquid Crystalline Polymers” Chupur, L. L., Ed., Elsevier Appl. Sci. Publishers, New York, 1980.Google Scholar
13. Finkleman, H and Rehage, O. Advances in Polymer Science and Technology, 1984, 60,48.Google Scholar
14. Noshay, A.; McGrath, J.E. “Block Copolymers: Overview and Critical Survey” Academic Press, New York, 1977.Google Scholar
15. Noll, W. “Chemistry and Technology of Silicones” Academic Press, New York, 1968.Google Scholar
16. Yiglor, I.; Riffle, J.S.; Wilkes, G.L.; McGrath, J.E. Polym. Bull. 1982, 8, 535.Google Scholar
17. Dwight, D.W.; Beck, B.R.; Riffle, J.S.; McGrath, J.E. Polym. Prep. 1979, 20(1), 202.Google Scholar
18. Gains, G.L. Macromolecules 1981, 14, 208.Google Scholar
19. LeDuc, L.; Blanchard, L.D.; Mulhatra, S.L. J. Macromol. Sci. Chem. 1980, A14, 389.Google Scholar
20. Braley, A. J. Macromol. Sci. Chem. 1970, A4, 529.Google Scholar
21. Ward, R.S.; Nyilas, E. “Organometallic Polymers” Academic Press, New York, 1978.Google Scholar
22. Kumpf, R. J., Gordo, B. III, Manuscript in preparation.Google Scholar
23. Yilgor, I. Riffle, J.S.; McGrath ACS Symposium Series 1985, 161.Google Scholar
24. Moehs, P.J.; Davidson, W.E. J.Organomet Chem. 1969, 20, 57.CrossRefGoogle Scholar
25. Hurd, D.T.; Osthoff, R.C; Corrin, M.L.; J. Amer. Chem. Soc. 1954, 76, 249.CrossRefGoogle Scholar
26. Mazurek, M.; Scibiorek, M.; Chojnowski, J.; Zauin, B.G.; Zhadarnov, A.A. Europ. Polym. J. 1970, 6, 331.Google Scholar
27. Chojnowski, J.; Wilczek, L. Makromol. Chem. 1979, 180, 117.Google Scholar
28. Wilczek, L. Chojnowski, J. J. Macromol. 1981, 14, 9.CrossRefGoogle Scholar
29. Kwolek, S.L.; Morgan, P.W.; Sorenson, W.R. US patent 3,063,966 (1962).Google Scholar
30. Stephens, C.W. US patent 3,472,819 (1969).Google Scholar
31. Sweeny, W. US patent 3,287,324 (1966).Google Scholar
32. Ogata, S-I.; Taraka, H. Polym. J. (Japan) 1971, 2, 627.Google Scholar
33. Yamazaki, N.; Matsumoto, M; Higashi, F. J. Polym. Sci. 1975, 13, 1373.Google Scholar
34. Kwolek, S.L.; Morgan, P.W.; Schaefgen, J.R; Gulrich, L.W. Macromolecules 1977,10,1391.Google Scholar
35. Preston, J. “Encyclopedia of Polymer Science and Engineering, Vol.11, John Wiley, New York, 1987.Google Scholar
36. Panar, M.; Beste, L.F. Macromolecules 1977, 10, 1401.CrossRefGoogle Scholar
37. Kwolek, S. US patent 3,671,542 (1972).Google Scholar
38. Flory, P.J. Macromolecules 1978, 11, 1141.CrossRefGoogle Scholar
39. Matheson, R.R.; Flory, P.J. Macromolecules 1981, 14, 954.Google Scholar