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Pure Appl. Chem., 2006, Vol. 78, No. 4, pp. 777-781

Molecular springs and muscles: Progress toward augmented electromechanical actuation

Adah Almutairi, Kunsang Yoon, Fook Tham and Michael J. Marsella

Department of Chemistry, University of California, Riverside, CA 92521-0403, USA

Abstract: The application of 3,3'-diphenyl-2'2-bithiophene as a helical scaffold capable of electrochemical polymerization to yield the corresponding polythiophene is reported. One unique feature of this monomer is its theoretically predicted (DFT) ability to mimic redox-stimulated contraction and expansion. This ability, coupled with traditional electromechanical actuation properties of bulk, redox-active conjugated polymers (CPs), yields a polymeric "molecular muscle" capable of both contraction and expansion.