7 June 2000 Toward single-molecule electromechanical actuators
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Herein we report the design, synthesis, and properties of a novel electromechanical actuator, poly(cyclooctatetrathiophene). This system integrates both a conducting polymer and a (4n)annulene repeat unit. The ability of (4n)annulenes to undergo a conformational change as a function of redox state is well known, and allows poly(cyclooctatetrathiophene) to, in principle, expand and contract via redox-induced changes in the length of the repeating unit. Thus, electromechanical actuation in this system is an intrinsic property of the individual chains, not a bulk property of the material. The ultimate goal is to demonstrate single-molecule electromechanical actuation.
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Michael J. Marsella, Rodney J. Reid, "Toward single-molecule electromechanical actuators", Proc. SPIE 3987, Smart Structures and Materials 2000: Electroactive Polymer Actuators and Devices (EAPAD), (7 June 2000); doi: 10.1117/12.387796; https://doi.org/10.1117/12.387796

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