Anchoring Strength Coefficient of a Monomer and Its Dimer at a Polymer-Coated Interface

Authors

Gregory A. Dilisi, Case Western Reserve University
Charles Rosenblatt, Case Western Reserve University
Robert B. Akins, Kent State University
Anselm C. Griffin, University of CambridgeFollow
Uma Hari, University of Southern Mississippi

Document Type

Article

Publication Date

1-1-1992

Department

Chemistry and Biochemistry

School

Mathematics and Natural Sciences

Abstract

The dialkoxyphenylbenzoate monomer ‘5005’ (C₅H₁₁OC₆H₄COOC₆H₄OC₅H₁₁) and its dimer were aligned parallel to a buffed polyimide-coated glass substrate. A magnetically induced Freedericksz transition in both thick and thin cells was used in conjunction with a capacitance technique to determine the anchoring strength coefficient Was a function of temperature in the nematic phase. It was found that for both monomer and dimer, Wincreases with decreasing temperature. The anchoring coefficient for the dimer, however, was found to be an order of magnitude larger than for the monomer at comparable reduced temperatures. The splay elastic moduli were also determined for both species, and found to be of comparable magnitude, consistent with previous results.

Publication Title

Liquid Crystals

Volume

11

Issue

1

First Page

63

Last Page

71

Recommended Citation

Dilisi, G. A., Rosenblatt, C., Akins, R. B., Griffin, A. C., Hari, U. (1992). Anchoring Strength Coefficient of a Monomer and Its Dimer at a Polymer-Coated Interface. Liquid Crystals, 11(1), 63-71.
Available at: https://aquila.usm.edu/fac_pubs/6716