首页|Regulating Actuations and Shapes of Liquid Crystal Elastomers through Combining Dynamic Covalent Bonds with Cooling-Rate-Mediated Control
Regulating Actuations and Shapes of Liquid Crystal Elastomers through Combining Dynamic Covalent Bonds with Cooling-Rate-Mediated Control
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
万方数据
维普
Realizing multiple locked shapes in pre-oriented liquid crystal elastomers(LCEs)is highly desired for diversifying deformations and en-hancing multi-functionality.However,conventional LCEs only deform between two shapes for each actuation cycle upon liquid crystal-isotropic phase transitions induced by external stimuli.Here,we propose to regulate the actuation modes and the locked shapes of a pre-orientated epoxy LCE by combining dynamic covalent bonds with cooling-rate-mediated control.The actuation modes can be adjusted on demand by exchange reactions of dynamic covalent bonds.Derived from the established actuation modes,such as elongation,bending,and spiraling,the epoxy LCE displays varied locked shapes at room temperature under different cooling rates.Various mediums are utilized to control the cooling rate,includ-ing water,silicone oil,and copper plates.This approach provides a novel way for regulating the actuation modes and locked shapes of cutting-edge intelligent devices.
Ya-Wen Liu、Huan Liang、Hong-Tu Xu、En-Jian He、Zhi-Jun Yang、Yi-Xuan Wang、Yen Wei、Zhen Li、Yan Ji
展开 >
The Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology(Ministry of Education),Department of Chemistry,Tsinghua University,Beijing 100084,China
Advanced Materials and Energy Center,Academy of Aerospace Science and Innovation,Beijing 100088,China
万方数据
维普
