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- W2072651799 endingPage "6109" @default.
- W2072651799 startingPage "6100" @default.
- W2072651799 abstract "Block copolymers and nanostructured materials derived therefrom are becoming increasingly ubiquitous in a wide variety of (nano)technologies. Recently, we have demonstrated that triblock copolymer organogels composed of physically cross-linked copolymer networks swollen with a midblock-selective solvent exhibit excellent electromechanical behavior as dielectric elastomers. In-plane actuation of such organogels, collectively referred to as electroactive nanostructured polymers (ENPs) to reflect the existence of a self-organized copolymer morphology, is attributed to the development of an electric-field-induced surface-normal Maxwell stress. In this study, we examine the composition and molecular weight dependence of the electromechanical properties afforded by organogels prepared from poly[styrene-b-(ethylene-co-butylene)-b-styrene] (SEBS) triblock copolymers selectively swollen with EB-compatible aliphatic oligomers. These materials undergo ultrahigh actuation displacement at significantly reduced electric fields relative to previously reported dielectric elastomers and possess electromechanical coupling efficiencies, which relate the conversion from electrical input to mechanical output, greater than 90%. The design of ENPs with broadly tunable electromechanical properties represents an attractive route to responsive materials for advanced engineering, biomimetic and biomedical applications." @default.
- W2072651799 created "2016-06-24" @default.
- W2072651799 creator A5009856010 @default.
- W2072651799 creator A5010363470 @default.
- W2072651799 creator A5054680255 @default.
- W2072651799 creator A5091772994 @default.
- W2072651799 date "2008-07-12" @default.
- W2072651799 modified "2023-10-16" @default.
- W2072651799 title "Triblock Copolymer Organogels as High-Performance Dielectric Elastomers" @default.
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- W2072651799 doi "https://doi.org/10.1021/ma071903g" @default.
- W2072651799 hasPublicationYear "2008" @default.