| 초록 |
Recently, electroactive polymer actuators (EAPs) have been actively studied for biomimetic technologies such as artificial muscles and soft robotics. Although EAPs can achieve large deformation under relatively low drive voltages, the slow response time and the weak gripping force have long been major shortcomings of EAPs. Here, we report a new dual stimuli-responsive actuator based on electroactive ionic polymers and light-responsive polymers. The orthogonal control over the two layers enabled us to achieve fast response time (by employing block copolymer electrolytes with low tortuous ion-conducting pathways) and improved blocking force (by optimizing the designs of light-responsive polymers). The fact that the dramatic changes in gripping force of the actuators were brought about solely by the introduction of light-responsive polymer layers confirmed our approach as a powerful tool for the design of efficient soft actuators. |
