Provided are: a dielectric elastomer which has a metal compound at an end of a modified silicone, and wherein the metal compound contains a polyhedral polysilsesquioxane containing a metal, said polyhedral polysilsesquioxane containing a metal having a phenyl group, an alkyl group, a methacryl group, an acryl group, a glycidyl group or a cyano group; a dielectric elastomer actuator which uses this dielectric elastomer; and the like.
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