Abstract
A composite material based on a liquid-crystalline gel has been prepared via the polymerization of diphenylolpropane dimethacrylate in the presence of the commercial nematic liquid crystal LC-1277 (94.3 wt %). Polymerization is performed under the action of UV irradiation. In the presence of the applied electric voltage, light scattering and birefringence of the samples are changed. The critical field of the electrooptical effect is found to be 2 V, the turn-on time of the effect is 9 ms (this time decreases with increasing voltage), and the turnoff time is 6 ms (independent of voltage). This material can be used in devices for optical irradiation control.
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