The present invention provides electroactive polymers, transducers and
devices that maintain pre-strain in one or more portions of an
electroactive polymer. Electroactive polymers described herein may
include a pre-strained portion and a stiffened portion configured to
maintain pre-strain in the pre-strained portion. One fabrication
technique applies pre-strain to a partially cured electroactive polymer.
The partially cured polymer is then further cured to stiffen and maintain
the pre-strain. In another fabrication technique, a support layer is
coupled to the polymer that maintains pre-strain in a portion of an
electroactive polymer. Another embodiment of the invention cures a
polymer precursor to maintain pre-strain in an electroactive polymer.