Journal
ADVANCED MATERIALS
Volume 28, Issue 44, Pages 9792-+Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201603677
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Funding
- Deutsche Forschungsgemeinschaft (DFG) [SFB 840]
- China Scholarship Council
- Volkswagen Foundation
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A rare example of a one-component dual actuator is provided, which displays irreversible change in shape by rolling on contact with water and reversible size change on changing the temperature. The actuator has a bilayer structure with aligned and randomly oriented fibers of poly(N-isopropyl acrylamide). A combination of anisotropic E modulus and temperature dependent swelling/shrinkage provides the dual actuation.
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