Smart Ionic Skins and Actuators with Ionic Azobenzene-Based LCEs: Heat, Light, and Strain-Induced Ionic Conductivity Switching and Actuations
발표자
오민택 (전북대학교)
연구책임자
정광운 (전북대학교)
초록
내용
We report the design of a novel ionic azobenzene-based monomer (i-AAM) and its successful polymerization into liquid crystal elastomers (LCEs) that exhibit uniaxially orientation and switchable ionic conductivity. The i-AAM LCEs can form either monodomain or polydomain states, acting as actuators and ionic skins, respectively. In the monodomain state, the LCE contracts above TNI and bends upon UV exposure. In the polydomain state, its ionic conductivity can be reversibly modulated by heat, light, and mechanical stimuli. By combining the distinct actuation and sensing capabilities of each state, we developed a soft gripper that not only deforms in response to various external stimuli but also detects their intensity. The LCE-based actuators and smart skins offer a versatile platform for developing next-generation soft robotic systems with integrated multi-functional responsiveness. This work was supported by Basic Research Laboratory Program (RS-2023-00207836), BK21 FOUR Program.