Skip to main content
×
Home

Effect of Network Elasticity on Nematic Liquid Crystal/Cross-Linked Polymer Phase Diagram

  • D. Nwabunma (a1), T. Kyu (a1), R.T. Pogue (a2) and T.J. Bunning (a3)
Abstract
ABSTRACT

The influence of elasticity on the phase behavior of a mixture of nematic liquid crystal (LC) and in-situ cross-linked polymer has been investigated. Unlike the phase diagram of the LC/pre-cured polymer, the experimental diagram of LC/cross-linked polymer phase supported by theoretical calculation showed no critical point. Instead, the binodal curve exhibits an upward asymptotic behavior as the LC volume fraction approaches unity due to domination arising from network elasticity, particularly at high LC volume fraction. An examination of the effect of cross-links segment length and network functionality on the phase diagram of LC/cross-linked polymer showed that the segment length between cross-links exerts a greater influence.

Copyright
References
Hide All
1Doane J. W., Liquid Crystal: Applications and Uses, edited by Bahadur B. (World Scientific: Singapore, 1990) Chapter 14, pp. 361.
2Nwabunma D., Kim K. J., Lin Y., Chen L. C., Kyu T., Macromolecules 31, 6806 (1998).
3Hirai R., Niiyama S., Kumai H., Gunjima T., Proc. SPIE-Int. Soc. Opt. Eng. 1257,2 (1990); Rep. Res. Lab., Asahi Glass Co., Ltd. 40, 285 (1990).
4Shen C., Kyu T., J. Chem. Phys. 102, 7471 (1995).
5Nwabunma D., Kyu T., Macromolecules 32, 664 (1999).
6Flory P. J., J. Chem. Phys. 18, 108 (1950).
7James H., Guth E. J., J Chem. Phys. 15, 669 (1947).
8Flory P. J., Macromolecules 25, 101 (1979).
9Gennes P.–G. de, in Polymer Liquid Crystals, edited by Ciferri A., Krigbaum W. R., Meyer R. B. (Academic Press: New York, 1982).
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

MRS Online Proceedings Library (OPL)
  • ISSN: -
  • EISSN: 1946-4274
  • URL: /core/journals/mrs-online-proceedings-library-archive
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 1 *
Loading metrics...

Abstract views

Total abstract views: 21 *
Loading metrics...

* Views captured on Cambridge Core between September 2016 - 20th November 2017. This data will be updated every 24 hours.