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Proceedings Paper

Captured liquid crystalline order in polymer networks
Author(s): Gregory P. Crawford; R. D. Polak; A. Scharkowski; Liang-Chy Chien; Slobodan Zumer; J. William Doane
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Paper Abstract

Orientationally ordered polymer networks are prepared in spherical and cylindrical geometries by isothermal photopolymerization of diacrylate molecules dissolved in a nematic liquid crystal. Optical polarizing microscopy textures reveal that the network memorizes the nematic director field. Diacrylate concentrations of 2% by weight suffice to create a stable network embedded in the anisotropic liquid crystal environment for temperatures as high as 150 degree(s)C. Polymer networks that are formed under various surface conditions, applied electric fields, and geometrical constraints are characterized with optical polarizing microscopy.

Paper Details

Date Published: 4 April 1994
PDF: 8 pages
Proc. SPIE 2175, Liquid Crystal Materials, Devices, and Applications III, (4 April 1994); doi: 10.1117/12.172126
Show Author Affiliations
Gregory P. Crawford, Naval Research Lab. (United States)
R. D. Polak, Kent State Univ. (United States)
A. Scharkowski, Kent State Univ. (United States)
Liang-Chy Chien, Kent State Univ. (United States)
Slobodan Zumer, Kent State Univ. (Slovenia)
J. William Doane, Kent State Univ. (United States)

Published in SPIE Proceedings Vol. 2175:
Liquid Crystal Materials, Devices, and Applications III
Ranganathan Shashidhar, Editor(s)

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