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Dielectric elastomer film with anisotropic actuation deformation on film plane
Author(s) -
Jin Yukai,
Gao Xiang,
Luo Yingwu
Publication year - 2020
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.48795
Subject(s) - materials science , elastomer , composite material , acrylate , deformation (meteorology) , dielectric elastomers , anisotropy , dielectric , styrene , monomer , polymer , optics , copolymer , physics , optoelectronics
ABSTRACT A new dielectric elastomer (DE) film, which was able to show anisotropic large plane deformation actuated by an external electric field, was designed and synthesized. Specifically, an asymmetric di‐vinyl monomer cyclohex‐3‐enylmethyl acrylate (CEA) was incorporated into the middle block of poly(styrene‐b‐butyl acrylate‐b‐styrene) as potential crosslinking points. By widely used UV curing technique through a mask, the DE films could be locally hardened any area one selected. This could break the symmetry of the actuation deformation on the DE film plane, maximizing the deformation in a given direction while the actuation area strain remained unchanged. The actuation strain y /strain x reached 2.3, strain in x direction was 10.3% while in y direction was 23%, when the DE film of S(BA‐ran‐CEA)S with 2.5 mol % CEA incorporated was locally hardened in the form of soft and hard belt of 1 mm width alternatively along y direction. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020 , 137 , 48795.