ABSTRACT Mechanical responses to electric stimulation in a liquid crystalline elastomer composed of cholesterol-derived mesogens were investigated. An electric-field-induced polar deformation resembling the motion of the flukes of a dolphin was observed in the temperature region of the pseudo-isotropic state of the elastomer prepared by cross-linking reaction under splay distortion. The emergence of polarisation was also confirmed above the SmA* to the pseudo-isotropic phase transition temperature, whereas no polarisation emerged in the SmA* phase. We tentatively conclude that the flexoelectric effect within splay distortion fixed by cross-linking caused the emergence of polarisation and the polar deformation. GRAPHICAL ABSTRACT

中文翻译：

---

由胆固醇衍生的楔形介晶液晶弹性体中的电斜和挠电效应引起的电场诱导变形

摘要研究了由胆固醇衍生的介晶组成的液晶弹性体对电刺激的机械响应。在张开变形下通过交联反应制备的弹性体的准各向同性状态的温度范围内观察到类似于海豚吸虫运动的电场诱导的极性变形。在 SmA* 以上到伪各向同性相变温度也证实了极化的出现，而在 SmA* 相中没有出现极化。我们初步得出结论，交联固定的展曲变形内的挠曲电效应导致了极化和极性变形的出现。图形概要