| 초록 |
The intelligent matter that can interact with the environment, self-regulate its action and even learn from the input signal is essential to advance various applications such as artificial skins, smart clothing, and soft robotics. Liquid crystals (LCs) have served as the key materials for the flat panel display, but they can also offer intelligent and useful properties when built into a variety of polymeric forms as well. In this presentation, I will focus on liquid crystal elastomers (LCEs) which are loosely crosslinked polymer networks combining the elastic properties of rubber with anisotropic properties of LCs. Multifunctionality and responsivity can be programmed into LCEs by directing the molecular orientation unlike other monolithic materials. By judiciously designing the molecular structure of the LCEs, we successfully demonstrate 4D printable hygroscopic LCE actuators as well as reprogrammable artificial muscles. |
