[9a-PA2-1~40] 12.3 Functional Materials and Novel Devices

[9a-PA2-3] Flexoelectric Effects in Side-Chain Type Liquid-Crystalline Elastomers Composed of Anisometric Mesogens

〇Kazuyuki Hiraoka¹, Shiori Taira¹, Yuka Hoshino¹, Masato Oshima¹ (1.Tokyo Polytech. Univ.)

Keywords:liquid-crystalline elastomer, flexoelectric effect, splay

Mechanical responses to electric stimulation in a side-chain liquid-crystalline elastomer composed of cholesterol derivative mesogens were investigated. An electric-field-induced bend deformation was observed in the vicinity of the SmA-to-isotropic phase transition temperature. The polar response of the induced deformation, indicator existence of polarization. We speculate “flexoelectric effect” which is polarization induced by splay distortion.