Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 56, Issue 43, Pages 13436-13439Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201706793
Keywords
actuators; liquid crystals; photothermal effects; polymers; soft matter
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Funding
- Netherlands Organization for Scientific Research (NWO-TOP PUNT Grant) [10018944]
- European Research Council (Vibrate ERC Grant) [669991]
- People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme FP7 [607602]
- programme of the Dutch Polymer Institute (DPI) [776]
- European Research Council (ERC) [669991] Funding Source: European Research Council (ERC)
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We report on the fabrication of a rewritable and reprogrammable dual-photoresponsive liquid crystalline-based actuator containing an azomerocyanine dye that can be locally converted into the hydroxyazopyridinium form by acid treatment. Each dye absorbs at a different wavelength giving access to programmable actuators, the folding of which can be controlled by using different colors of light. The acidic patterning is reversible and allows the erasing and rewriting of patterns in the polymer film, giving access to reusable, adjustable soft actuators.
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