Micellar Lyotropic Nematic Gels.
low-molecular-weight gelators
lyotropic liquid crystals
lyotropic nematic gels
self-assembled fibrillar networks
Journal
Advanced materials (Deerfield Beach, Fla.)
ISSN: 1521-4095
Titre abrégé: Adv Mater
Pays: Germany
ID NLM: 9885358
Informations de publication
Date de publication:
Feb 2021
Feb 2021
Historique:
received:
27
10
2020
revised:
07
12
2020
pubmed:
19
1
2021
medline:
19
1
2021
entrez:
18
1
2021
Statut:
ppublish
Résumé
Lyotropic liquid crystal (LLC) gels are a new class of liquid crystal (LC) networks that combine the anisotropy of micellar LLCs with the mechanical stability of a gel. However, so far, only micellar LLC gels with lamellar and hexagonal structures have been obtained by the addition of gelators to LLCs. Here, the first examples of lyotropic nematic gels are presented. The key to obtain these nematic gels is the use of gelators that have a non-amphiphilic molecular structure and thus leave the size and shape of the micellar aggregates essentially unchanged. By adding these gelators to lyotropic nematic phases, an easy and reproducible way to obtain large amounts of lyotropic nematic gels is established. These nematic gels preserve the long-range orientational order and optical birefringence of a lyotropic nematic phase but have the mechanical stability of a gel. LLC nematic gels are promising new materials for elastic and anisotropic hydrogels to be applied as water-based stimuli-responsive actuators and sensors.
Identifiants
pubmed: 33458888
doi: 10.1002/adma.202007340
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e2007340Subventions
Organisme : Fonds der Chemischen Industrie
Organisme : Deutsche Forschungsgemeinschaft
ID : Gi 243/9-1
Informations de copyright
© 2021 The Authors. Advanced Materials published by Wiley-VCH GmbH.
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