Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 34, Issue 4, Pages 330-334Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.201200667
Keywords
elastomers; grating; liquid crystal polymers; microwire; soft-lithography
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Funding
- NSFC [91027024, 51061130556]
- French ANR [ANR-10-INTB-0904]
- PICS-CNRS project
- Agence Nationale de la Recherche (ANR) [ANR-10-INTB-0904] Funding Source: Agence Nationale de la Recherche (ANR)
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A new approach is developed to fabricate highly oriented mono-domain LCE nano/microstructures through micro-molding in capillaries. Gratings and microwires as two typical examples are fabricated and characterized by polarizing optical microscopy, optical microscopy, and scanning electron microscopy. The gratings with precisely controlled sizes and smooth surface are obtained by filling the channels with a nematic monomer mixture followed by the photo-crosslinking. After peeling off the gratings from the substrate, the free-standing microwires are obtained. A uniform orientation of the mesogenic units is observed for the molds with channel width less than 20 m. Reversible thermomechanical effect is demonstrated by using the microwires obtained through this approach.
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