Literature review demonstrates diverse actuation mechanisms across stimuli-responsive polymer classes, highlighting pathways toward advanced artificial muscle applications.
A variety of stimuli-responsive polymers have been developed and used as actuators and/or artificial muscles, with the movement being driven by an external stimulus, such as electrical potential. This Review highlights actuators constructed from liquid-crystal elastomers, dielectric elastomers, ionic polymers, and conducting polymers. The Review covers recent examples of a variety of actuators generated from these materials and their utility. The mechanism of actuation will be detailed for most examples in order to stimulate possible future research, and lead to new applications and advanced applications.
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Zhang et al. (2017) studied this question.
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