The electrically‐directed, isothermal response of liquid crystal elastomers (LCEs) to an applied electric field is a compelling approach to realize spatially tailorable, sequence‐controllable, and high‐frequency deformation. The electromechanical response is facilitated by coating aligned LCEs with compliant electrodes. Upon application of an electric field, the electrodes attract and generate Maxwell stress. The directional difference in moduli for aligned LCEs produces directional deformation of the material and does not require mechanical bias or framing. Here, LCEs prepared from a newly reported thiol‐ene reaction are explored as DEAs with improved mechanical and dielectric properties. This report details that incorporating a difunctional liquid crystalline monomer composed of allyl ether functional groups reduces Young's modulus, increases the dielectric constant, and improves cyclic recovery compared to an analogous LCE prepared by thiol‐ene polymerization. Electrically‐induced, isothermal deformation of as much as 30% strain is reported. The facile chemistry and enhanced electromechanical response reported here may enable the functional integration of LCEs in applications such as robotics.

中文翻译：

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硫醇烯光聚合制备液晶弹性体的机电输出增强

液晶弹性体（LCE）对施加电场的电定向等温响应是实现空间可定制、序列可控和高频变形的一种引人注目的方法。通过用顺应性电极涂覆对齐的 LCE，可以促进机电响应。在施加电场时，电极吸引并产生麦克斯韦应力。对齐的 LCE 的模量的方向差异会产生材料的方向变形，并且不需要机械偏置或框架。在这里，通过新报道的硫醇-烯反应制备的 LCE 被探索为具有改进的机械和介电性能的 DEA。该报告详细介绍了与通过硫醇-烯聚合制备的类似LCE相比，掺入由烯丙基醚官能团组成的双官能液晶单体降低了杨氏模量，增加了介电常数，并改善了循环恢复。据报道，电致等温变形高达 30% 的应变。这里报道的简便化学和增强的机电响应可能使 LCE 在机器人等应用中实现功能集成。