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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Schenning, Aphj Albert
Eindhoven University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (37/37 displayed)
- 2023Melt-Extruded Thermoplastic Liquid Crystal Elastomer Rotating Fiber Actuatorscitations
- 2023Switching between 3D surface topographies in liquid crystal elastomer coatings using two-step imprint lithographycitations
- 2022Hydrogen-Bonded Supramolecular Liquid Crystal Polymers: Smart Materials with Stimuli-Responsive, Self-Healing, and Recyclable Propertiescitations
- 2021NIR–vis–UV Light-Responsive High Stress-Generating Polymer Actuators with a Reduced Creep Ratecitations
- 2021Patterned Actuators via Direct Ink Writing of Liquid Crystalscitations
- 2020Stimuli-Responsive Shape Changing Commodity Polymer Composites and Bilayerscitations
- 2020Direct Laser Writing of Four-Dimensional Structural Color Microactuators Using a Photonic Photoresistcitations
- 2019An untethered magnetic- and light-responsive rotary gripper: shedding light on photoresponsive liquid crystal actuatorscitations
- 20193D helix engineering in chiral photonic materialscitations
- 2018Hydrogen-bonded siloxane liquid crystals for hybrid nanomaterials
- 2018Stimuli-responsive polymer film or coating prepared by mixing in a suitable fashion a side chain liquid crystalline polymer with reactive mesogens and responsive devices:process for preparing the same
- 2018Stimuli-responsive polymer film or coating prepared by mixing in a suitable fashion a side chain liquid crystalline polymer with reactive mesogens and responsive devices
- 2017A rewritable, reprogrammable, dual light-responsive polymer actuatorcitations
- 2017Anisotropic dye adsorption and anhydrous proton conductivity in smectic liquid crystal networks:the role of cross-link density, order, and orientation
- 2017Photonic shape memory polymer with stable multiple colorscitations
- 2017Easily processable temperature-responsive infrared-reflective polymer coatings
- 2016Regulating the modulus of a chiral liquid crystal polymer network by lightcitations
- 2016A chaotic self-oscillating sunlight driven polymer actuatorcitations
- 2016Stimuli-responsive liquid crystalline materialscitations
- 2015Hydrogen bonding in supramolecular nanoporous materials
- 2015Stimuli-responsive materials based on interpenetrating polymer liquid crystal hydrogelscitations
- 2015Nanoporous adsorbent material for removing species from an aqueous solution
- 2015Liquid crystal polymer membranescitations
- 2014Humidity-responsive liquid crystalline polymer actuators with an asymmetry in the molecular trigger that bend, fold, and curlcitations
- 2014Responsive nanoporous smectic liquid drystal polymer networks as efficient and selective adsorbentscitations
- 2014Accordion-like actuators of multiple 3D patterned liquid crystal polymer filmscitations
- 2014The role of supramolecular chemistry in stimuli responsive and hierarchically structured functional organic materials
- 2014An optical sensor for volatile amines based on an inkjet-printed, hydrogen-bonded, cholesteric liquid crystalline filmcitations
- 2014An optical sensor for volatile amines based on an inkjet-printed, hydrogen-bonded, cholesteric liquid crystalline film
- 2014Optical and topographic changes in water-responsive patterned cholesteric liquid crystalline polymer coatingscitations
- 2013Photoswitchable hydrogel surface topographies by polymerisation-induced diffusioncitations
- 2012Engineering of complex order and the macroscopic deformation of liquid crystal polymer networkscitations
- 2012Printable optical sensors based on H-bonded supramolecular cholesteric liquid crystal networkscitations
- 2008Molecular weight optimum in the mesoscopic order of chiral fluorene (Co)polymer filmscitations
- 2003Highly emissive supramolecular oligo(p-phenylene vinylene) dendrimers
- 2002A soluble equivalent of the supramolecular, quasi-one-dimensional, semiconducting Magnus' green saltcitations
- 2001Synthesis and properties of self organising semiconducting and luminescent polymers and model compounds
Places of action
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article
Accordion-like actuators of multiple 3D patterned liquid crystal polymer films
Abstract
This work describes the fabrication, characterization, and modelling of liquid crystalline polymer network films with a multiple patterned 3D nematic director profile, a stimuli-responsive material that exhibits complex mechanical actuation under change of temperature or pH. These films have a discrete alternating striped or checkerboard director profile in the plane, and a 90-degree twist through the depth of the film. When actuated via heating, the striped films deform into accordion-like folds, while the film patterned with a checkerboard microstructure buckles out-of-plane. Furthermore, striped films are fabricated so that they also deform into an accordion shaped fold, by a change of pH in an aqueous environment. Three-dimensional finite element simulations and elasticity analysis provide insight into the dependence of shape evolution on director microstructure and the sample's aspect ratio.