The Correlation between Electrically Induced Stress and Mechanical Tensile Strength of Polypyrrole Actuators

Abstract
Highly stretchable and powerful PPy film actuators, prepared electrochemically from a methyl benzoate solution of tetra-n-butylammonium tetrafluoroborate (TBABF4), showed a positive correlation between the electrochemical stress and the mechanical tensile strength. The more flexible CF3SO3−-doped PPy suits multi-wound or multi-folded actuators that can be used as artificial muscles.