Method of preparing a pyroelectric mixture and pyroelectric devi

Details Method of preparing a pyroelectric mixture and pyroelectric devi Method of preparing a pyroelectric mixture and pyroelectric devi

1996-12-20

1998-11-10

Gorgos, Kathryn L.

Electrolysis: processes, compositions used therein, and methods

Electrolytic synthesis

Preparing organic compound

205419, 310800, 310357, C25B 300, H01L 4104

Patent

active

058338330

ABSTRACT:
A method of preparing a pyroelectric mixture, especially for pyroelectric and piezoelectric components. At least two compounds are mixed in a prescribed ratio. One compound contains polymerizable and preferably achiral liquid-crystal monomers and the other a preferably achiral liquid-crystal polymer or copolymer. Each compound also contains hydrogen-bridging substituents. The mixture is heated to above its specific vitrification point. An electric field is applied to polymerize the monomer and polarize the mixture. The mixture is cooled to below its specific glass transition point with the field still present.

REFERENCES:
patent: 3707695 (1972-12-01), Yamaka
patent: 5100589 (1992-03-01), Ticknor
patent: 5359253 (1994-10-01), Hikmet
Blinov, L. et al., "Experimental techniques for the investigation of ferroelectric liquid crystals," Liquid Crystals, 1987, vol. 2, No. 2, pp. 121-130.

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