Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 27, Issue 16, Pages 1323-1329Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.200600342
Keywords
anisotropic swelling; liquid crystalline polymers; hydrogels; hydrogen bonding
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We investigate a series of glassy polymer actuators which are found to bend rapidly and reversibly in response to changes in the solvent environment. The actuators are based on 1 hydrogen-bonded liquid crystal networks, and bending motion 1 is created using director profiles engineered to take advantage of the network swelling anisotropy. Strongly polar solvents easily swell the network, forcing bending in one direction, while the less polar solvents extract water to force bending in the opposite direction.
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