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In this work we describe the design and development of an all-polymer electromechanical actuator with dissimilar conducting polymer anode and cathode in contact with a solid ion source — sink of a water based polyacrylamide hydrogel. This allows contraction of one film during oxidation and the other during reduction, and the expansion of both when the polarity is reversed. This gives a stable, free-standing...
A technique based on an inert substrate/Pt/CEP actuator has been devised to allow in-situ tensile testing for the optimisation of an electromechanical actuator. This system has shown that maximum actuation of a PPy based actuator occurs for relatively thin film (30min growth time) of PPy/NO 3 in a solution of KNO 3 when scanned at scan rate of 10mV/s from -1.0 to 0V (vs. Ag/AgCl).
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