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Holographic Polymer Dispersed Liquid Crystals: Effect of Partial Matrix Fluorination on Electro-Optical and Morphological Properties

Published online by Cambridge University Press:  15 March 2011

Michael D. Schulte ,
Stephen J. Clarson ,
Lalgudi V. Natarajan ,
C. Allan Guymon  and
Timothy J. Bunning
Michael D. Schulte
Affiliation:
Department of MS&E, University of Cincinnati, Cincinnati, OH 45221-0012, U.S.A.
Stephen J. Clarson
Affiliation:
Department of MS&E, University of Cincinnati, Cincinnati, OH 45221-0012, U.S.A.
Lalgudi V. Natarajan
Affiliation:
Science Applications International Corporation, 4031 Colonel Glenn Hwy, Dayton, OH 45431, U.S.A.
C. Allan Guymon
Affiliation:
Department of Polymer Science, University of Southern Mississippi, Hattiesburg, MS 39406-0076, U.S.A.
Timothy J. Bunning
Affiliation:
Air Force Research Laboratory/MLPJ Wright-Patterson Air Force Base, OH 45433-7702, U.S.A.
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Abstract

Holographic polymer dispersed liquid crystal (H-PDLC) films with partially fluorinated matrices were investigated. Electro-optical and morphological studies revealed that fluorinated composites were substantially different from non-fluorinated analogues. The addition of a fluorinated monofunctional acrylate monomer to a pentaacrylate-derived polymer matrix resulted in improved diffraction efficiency. These findings suggest that the partial fluorination of the host polymer decreases the compatibility between the matrix and liquid crystal phase. Morphological differences between fluorinated films and non-fluorinated control specimens were verified using low-voltage, high-resolution scanning electron microscopy (LVHRSEM).

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 709: Symposium CC – Advances in Liquid Crystalline Materials and Technologies , 2001 , CC6.7.1
Copyright
Copyright © Materials Research Society 2002

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References

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