Programmable and Self‐Healable Liquid Crystal Elastomer Actuators Based on Halogen Bonding

Abstract: Shape‐changing polymeric materials have gained significant attention in the field of bioinspired soft robotics. However, challenges remain in versatilizing the shape‐morphing process to suit different tasks and environments, and in designing systems that combine reversible actuation and self‐healing ability. Here, we report halogen‐bonded liquid crystal elastomers (LCEs) that can be arbitrarily shape‐programmed and that self‐heal under mild thermal or photothermal stimulation. We incorporate halogen‐bond‐donating diiodotetrafluorobenzene molecules as dynamic supramolecular crosslinks into the LCEs and show that these relatively weak crosslinks are pertinent for their mechanical programming and self‐healing. Utilizing the halogen‐bonded LCEs, we demonstrate proof‐of‐concept soft robotic motions such as crawling and rolling with programmed velocities. Our results showcase halogen bonding as a promising, yet unexplored tool for the preparation of smart supramolecular constructs for the development of advanced soft actuators.

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch

Erschienen in
Programmable and Self‐Healable Liquid Crystal Elastomer Actuators Based on Halogen Bonding ; day:19 ; month:09 ; year:2023 ; extent:11
Angewandte Chemie ; (19.09.2023) (gesamt 11)

Urheber
Guo, Hongshuang
Liang, Chen
Ruoko, Tero‐Petri
Meteling, Henning
Peng, Bo
Zeng, Hao
Priimagi, Arri

DOI
10.1002/ange.202309402
URN
urn:nbn:de:101:1-2023092015211311635073
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
14.08.2025, 11:04 MESZ

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Beteiligte

  • Guo, Hongshuang
  • Liang, Chen
  • Ruoko, Tero‐Petri
  • Meteling, Henning
  • Peng, Bo
  • Zeng, Hao
  • Priimagi, Arri

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