Liquid-crystalline elastomer carrying cyanobiphenyl side groups was synthesized by radical copolymerization of 6-(4′-cyanobiphenyl-4-yloxy)hexyl acrylate and hexamethylene diacrylate. Liquid-crystalline elastomer was swollen in a low molecular weight liquid crystal. Swollen elastomer in the nematic phase quickly deformed by application of DC voltage. The response time of electrical deformation was determined by image analysis.
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Kishi et al. (1997) studied this question.
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