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

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

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

13 Lataukset (Pure)

Abstrakti

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.

AlkuperäiskieliEnglanti
Artikkelie202309402
JulkaisuAngewandte Chemie - International Edition
Vuosikerta62
Numero43
Varhainen verkossa julkaisun päivämäärä2023
DOI - pysyväislinkit
TilaJulkaistu - 23 lokak. 2023
OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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