Skip to main content Accessibility help
×
Home

Molecular Dynamics of Side Chain Liquid Crystalline Polysiloxanes

  • G. M. Podojil (a1), B. L. Farmer (a1), T. J. Bunning (a2), R. Pachter (a2) and W. W. Adams (a2)...

Abstract

Molecular dynamics simulations have been used to characterize the development and longevity of associations between cholesterol and biphenyl mesogens when attached to linear siloxane oligomers by flexible spacer groups. Single substituents, alternating substituents, and diblock and triblock arrangements of the substituents were considered. The backbone and spacer groups allow sufficient flexibility that long-lived associations between cholesterol mesogens form quite rapidly, as do more fluid associations between biphenyl and cholesterol mesogens. The study of the individual mesogen interactions and how these lead to larger scale aligned structures has provided insight into the nature of the liquid crystalline state in these materials.

Copyright

References

Hide All
1. Finkelmann, H., Happ, M., Portugal, M., and Ringsdorf, H., Makromol. Chem., 179, 2541 (1978).
2. Finkelmann, H., Ringsdorf, H., and Wendorff, J. H., Makromol. Chem., 179, 273 (1978).
3. Finkelmann, H., and Rehage, G., Makromol. Chem., Rapid Comm., 1, 31 (1980).
4. Ringsdorf, H., and Schneller, A., Br. Polym. J., 13, 43 (1980).
5. Ringsdorf, H., and Schneller, A., Makromol. Chem., Rapid Comm., 3, 557 (1982).
6. Bunning, T. J., Klei, H. E., Koberstein, J. T., Samulski, E. T., Adams, W. W., and Crane, R. L., U. S. Air Force Technical Report #WL-TR-92–4051, (1992).
7. Gresham, K. D., McHugh, C. M., Bunning, T. J., Crane, R. L., Klei, H. E., and Samulski, E. T., J. Polym. Sci. A: Polym. Chem., 32, 2039 (1994).
8. Freidzon, Y. S., Tropsha, Y. G., Tsukruk, V. V., Shilov, V. V., Shibayev, V. P., and Lipatov, Y. S., Polym. Sci. U.S.S.R., 29, 1505 (1987).
9. Patnaik, S. S., Pachter, R., Bunning, T. J., Crane, R. L., and Adams, W. W., Liq. Cryst., 16, 911 (1994).
10. Socci, E. P., Farmer, B. L., Pachter, R., Adams, W. W., and Bunning, T. J., U. S. Air Force Technical Report #WL-TR-91–4137, (1992).
11. Pachter, R., Bunning, T. J., and Adams, W. W., Comp. Polym. Sci., 1, 179 (1991).
12. Podojil, G. M., Farmer, B. L., Adams, W. W., Polymer, in press.
13. SYBYL Molecular Modeling Software and Manuals, Tripos Associates, Inc.St. Louis, MO (1992).
14. Clark, M., Cramer, R. D. III, and Opdenbosch, N. Van, J. Comp. Chem., 10, 982 (1989).
15. Socci, E. P., Master's thesis, University of Virginia Charlottesville, VA (1993).

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed