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Article
Molecular Motions and Ordering of the Interfacial, Droplet and Binder Regions of Polymer-Dispersed Liquid-Crystal Displays - A Paramagnetic-Resonance Spin-Probe Study
Journal of Applied Physics
  • YC Kim, Kent State University - Kent Campus
  • SH Lee, Kent State University - Kent Campus
  • John L West, Kent State University - Kent Campus
  • E Gelerinter, Kent State University - Kent Campus
Publication Date
1-1-1995
Document Type
Article
DOI
10.1063/1.358823
Keywords
  • glass-transition temperature,
  • dynamics,
  • mixtures,
  • acetate,
  • state
Disciplines
Abstract

The molecular dynamics and ordering of polymer‐dispersed liquid‐crystal displays are studied using the technique of paramagnetic resonance of spin probes. A complex spectrum is observed in which components are identified from probes dissolved in the droplet, binder, and interfacial regions of the display. In particular, the liquid‐crystal curing, phase separation, and structure of displays with both thermoplastic and epoxy binders are investigated. Observations are also performed as the liquid‐crystaldroplet size is varied. Among the more interesting results is the demonstrated ability to observe the interfacial region. It appears to be quite fluid and has little or no average order. It is also observed that the compatibility between the binder and liquid crystal, seen from some of the formulations studied, correlates with the reported electro‐optical properties. These include the magnitude and hysteresis of switching voltages and the magnitudes of switching times.

Comments

Copyright 1995 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in J. Appl. Phys. 77, 1914 (1995) and may be found at http://dx.doi.org/10.1063/1.358823.

Citation Information
YC Kim, SH Lee, John L West and E Gelerinter. "Molecular Motions and Ordering of the Interfacial, Droplet and Binder Regions of Polymer-Dispersed Liquid-Crystal Displays - A Paramagnetic-Resonance Spin-Probe Study" Journal of Applied Physics Vol. 77 Iss. 5 (1995) p. 1914 - 1922
Available at: http://works.bepress.com/john_west/19/