Accéder directement au contenu Accéder directement à la navigation
Nouvelle interface
Article dans une revue

Microstructured Nematic Liquid Crystalline Elastomer Surfaces with Switchable Wetting Properties

Abstract : Inspired by the lotus leaf, scientists have developed many superhydrophobic surfaces, some of which show remarkable switching between hydrophobic and hydrophilic state under external stimuli. However, the switch usually relies on the change of chemical properties rather than on the modification of the topographic structure of the surface. In this paper, the roughness-change-related switchable wetting properties of microstructured responsive surfaces made of nematic liquid crystalline elastomers (LCEs) is reported. First, various carbonate LC monomers and side-on LCEs are synthesized with low nematic-to-isotropic transition temperature, TNI. Then, LCEs prepared from 3″-vinylcarbonyloxypropyl 2,5-di(4′-octyloxybenzoyloxy)benzoate monomer, with TNI of 76 °C and contraction of 34% are used to construct a surface covered with micropillar arrays by using a replica molding technique. The contraction of the micropillars induces a reversible roughness change of the microstructured surface. Water contact angle of this microstructured surface changed with temperature, indicating a successful approach at building a surface with switchable wetting properties.
Type de document :
Article dans une revue
Liste complète des métadonnées

https://hal.mines-ales.fr/hal-03247385
Contributeur : Administrateur IMT - Mines Alès Connectez-vous pour contacter le contributeur
Soumis le : jeudi 3 juin 2021 - 22:54:41
Dernière modification le : mardi 7 décembre 2021 - 10:58:03
Archivage à long terme le : : samedi 4 septembre 2021 - 19:53:57

Fichier

microstructured-nematic-liquid...
Fichiers produits par l'(les) auteur(s)

Identifiants

Citation

Zi Liang Wu, Axel Buguin, Hong Yang, Jean-Marie Taulemesse, Nicolas Le Moigne, et al.. Microstructured Nematic Liquid Crystalline Elastomer Surfaces with Switchable Wetting Properties. Advanced Functional Materials, 2013, 23 (24), pp.3070-3076. ⟨10.1002/adfm.201203291⟩. ⟨hal-03247385⟩

Partager

Métriques

Consultations de la notice

29

Téléchargements de fichiers

86