Fast low-voltage electroactive actuators using nanostructured polymer electrolytes

Onnuri Kim, Tae Joo Shin and Moon Jeong Park ()
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Onnuri Kim: Pohang University of Science and Technology (POSTECH)
Tae Joo Shin: Pohang Accelerator Laboratory (PAL), Pohang University of Science and Technology (POSTECH)
Moon Jeong Park: Pohang University of Science and Technology (POSTECH)

Nature Communications, 2013, vol. 4, issue 1, 1-9

Abstract: Abstract Electroactive actuators have received enormous interest for a variety of biomimetic technologies ranging from robotics and microsensors to artificial muscles. Major challenges towards practically viable actuators are the achievement of large electromechanical deformation, fast switching response, low operating voltage and durable operation. Here we report a new electroactive actuator composed of self-assembled sulphonated block copolymers and ionic liquids. The new actuator demonstrated improvements in actuation properties over other polymer actuators reported earlier, large generated strain (up to 4%) without any signs of back relaxation. In particular, the millimetre-scale displacements obtained for the actuators, with rapid response (

Date: 2013
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DOI: 10.1038/ncomms3208

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