Dielectric electroactive polymers respond to an applied electric field by deformation as described by the Maxwell effect.
The response depends on the polymers' dielectric constant and stiffness. Addition of a high dielectric filler material has
been shown to enhance the strain response. We report preliminary results on the enhancement of p(EGPEA) polymer
films by addition of 1 w/v% of gold-capped, 500 nm SiO<sub>2</sub> Janus particles (JP-SiO<sub>2</sub>). In comparison to pure p(EGPEA)
and p(EGPEA) filled with unmodified SiO<sub>2</sub> particles, JP-SiO<sub>2</sub> p(EGPEA) films show an up to 24 times enhanced
response. Measurement of the relative dielectric constant and the Young's Modulus indicate that the Janus particle
additive increases the relative dielectric constant of the films, while at the same time decreasing the Young's Modulus
leading to an overall larger electrostrictive coefficient for the JP-SiO<sub>2</sub> p(EGPEA) films.