Design and synthesis of new ferroelectric liquid crystals. 9. An approach to creation of organic polymer thin films with controlled, stable polar orientation of functional groups

1989 ◽  
Vol 111 (21) ◽  
pp. 8273-8274 ◽  
Author(s):  
David M. Walba ◽  
Patrick Keller ◽  
Devendra S. Parmar ◽  
Noel A. Clark ◽  
Michael D. Wand
Keyword(s):  
Thin Films ◽  
Liquid Crystals ◽  
Functional Groups ◽  
Polymer Thin Films ◽  
Organic Polymer ◽  
Ferroelectric Liquid Crystals ◽  
Design And Synthesis ◽  
Polar Orientation

Design and synthesis of ferroelectric liquid crystals. 24. Incorporation of the disperse red 1 chromophqre into side-by-side dimers for nonlinear optics

1995 ◽  
Vol 413 ◽  
Author(s):  
Daniel J. Dyer ◽  
Renfan Shao ◽  
Noel A. Clark ◽  
David M. Walba
Keyword(s):  
Liquid Crystals ◽  
Integrated Circuits ◽  
Supermolecular Structure ◽  
Polar Axis ◽  
Nonlinear Susceptibility ◽  
Ferroelectric Liquid Crystals ◽  
Structural Class ◽  
Polar Order ◽  
Design And Synthesis ◽  
Smectic C

ABSTRACTWith excellent processibility on silicon integrated circuits and thermodynamically stable polar order, ferroelectric liquid crystals (FLCs) show great potential as components of fast integrated electro-optic modulators. In order to realize this potential, however, an increase in the magnitude of the electronic secona order nonlinear susceptibility χ(2) is required. This has been problematical since functional arrays with large molecular second order susceptibility β orient with improper supermolecular stereocontrol (i.e. with the charge transfer axis normal to the polar axis) when incorporated into traditional FLC structures. Herein we present examples of a new LC structural class designed to achieve the proper supermolecular structure for large χ(2) in FLCs. The observed sign and magnitude of the ferroelectric polarization of the new mesogens extrapolated from smectic C* mixtures is fully consistent with the desired supermolecular structure.

Study of ultrafine particles-organic polymer thin films

1993 ◽  
Vol 228 (1-2) ◽  
pp. 304-306
Author(s):  
Z.Q. Xue ◽  
W.M. Liu ◽  
Y.W. Liu ◽  
H.J. Gao ◽  
X.Y. Zhao ◽  
...  
Keyword(s):  
Thin Films ◽  
Ultrafine Particles ◽  
Polymer Thin Films ◽  
Organic Polymer

scholarly journals Thermal Stability of Photoalignment of Nematic Liquid Crystals by Azobenzene Polymer Thin Films.

1999 ◽  
Vol 12 (2) ◽  
pp. 285-288 ◽  
Author(s):  
Masatoshi Kidowaki ◽  
Takenori Fujiwara ◽  
Masaru Nakagawa ◽  
Shin'ya Morino ◽  
Kunihiro Ichimura
Keyword(s):  
Thin Films ◽  
Thermal Stability ◽  
Liquid Crystals ◽  
Nematic Liquid Crystals ◽  
Polymer Thin Films ◽  
Azobenzene Polymer ◽  
Thermal Stability Of
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