163970 20251113160753.0 doi 10.1002/smll.202509070 sideral 146103 ART-2025-146103 eng Bescós-Ramo, Sara Universidad de Zaragoza (orcid)0009-0008-6456-4856 An Amino‐Yne Click Chemistry Approach for Multi‐Responsive Liquid Crystal Elastomer Actuators 2025 The spontaneous amino-yne click reaction is introduced for the first time as a fast, efficient, and ambient temperature strategy for preparing multi-responsive Liquid Crystal Elastomer (LCE) actuators. This synthetic approach relies on the amino-yne cross-linking between secondary amines along the main chain of poly(β-amino ester) liquid crystal oligomers and a dipropiolate-functionalized cross-linker, rendering β-aminoacrylate cross-linking points. After alignment and locking via dynamic transesterification at 30 °C, the resulting LCE actuators exhibit reversible and reproducible thermal and light-induced actuation. The generated tension and activation kinetics are easily tunable by adjusting the cross-linker content. Additionally, leveraging the acid-triggered reactivity of the network enables it to respond to additional stimuli, including water-driven actuation. By integrating the capability for dynamic bond exchange, this LCE formulation opens new avenues for designing structures with complex molecular orientation patterns. As a proof of concept, a star-shaped soft actuator is fabricated, demonstrating diverse programmable actuation modes. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/ES/DGA/E47-23R info:eu-repo/grantAgreement/ES/MICINN/PID2021-126132NB-I00 info:eu-repo/grantAgreement/ES/MICIU/CEX2023-001286-S info:eu-repo/semantics/openAccess by https://creativecommons.org/licenses/by/4.0/deed.es info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Turriani, Marco Parmeggiani, Camilla Piñol, Milagros Universidad de Zaragoza (orcid)0000-0001-5556-2172 Oriol, Luis Universidad de Zaragoza (orcid)0000-0002-0922-5615 Martella, Daniele 2013 765 Universidad de Zaragoza Dpto. Química Orgánica Área Química Orgánica (2025), e09070 [11 pp.] Small Small 1613-6810 4381906 http://zaguan.unizar.es/record/163970/files/texto_completo.pdf Versión publicada 2856002 http://zaguan.unizar.es/record/163970/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:163970 articulos driver 2025-11-13-14:58:48 ARTICLE