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Thermoplastic Dielectric Elastomer of Triblock Copolymer with High Electromechanical Performance
Author(s) -
Ma Zipeng,
Xie Yuhan,
Mao Jie,
Yang Xuxu,
Li Tiefeng,
Luo Yingwu
Publication year - 2017
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201700268
Subject(s) - materials science , dielectric elastomers , copolymer , elastomer , actuator , thermoplastic elastomer , dielectric , electroactive polymers , composite material , acrylate , electrostriction , piezoelectricity , artificial muscle , polymer , optoelectronics , computer science , artificial intelligence
Dielectric elastomer (DE) actuators have been shown to have promising applications as soft electromechanical transducers in many emerging technologies. The DE actuators, which are capable of large actuation strain over a wide range of excitation frequencies, are highly desirable. Here, the first single‐component DE of a triblock copolymer with attractive electromechanical performance is reported. Symmetric poly(styrene‐ b ‐butyl acrylate‐ b ‐styrene) (SBAS) is designed and synthesized. The SBAS actuator exhibits about 100% static actuation area strain and excellent dynamic performance, as evidenced by a wide half bandwidth of 300 Hz and a very high specific power of 1.2 W g –1 within the excitation frequency range of 300–800 Hz.