Self-Healing Composite Polymers Based on Spin Crossover Materials for Multidirectional Preprogrammed Actuation - Archive ouverte HAL
Article Dans Une Revue ACS Applied Polymer Materials Année : 2024

Self-Healing Composite Polymers Based on Spin Crossover Materials for Multidirectional Preprogrammed Actuation

Résumé

A dimethylglyoxime–urethane-based self-healing polyurethane elastomer with a distinct two-phase morphology combining high extensibility (>500%), a high Young’s modulus (40 MPa), and a high healing efficiency based on dual dynamic bonds at room temperature was obtained. Such a polymer was used for fabrication by blade casting and/or self-healing bilayer actuators incorporating a composite layer formed by anisometric spin crossover particles presenting anisotropic volume change and showing large transformation strain above room temperature. Thus, the self-healing polymer, generally used for damage reparation, is also useful for the shaping of the bilayer composite actuator as well as to guide its preprogrammed motion.
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Dates et versions

hal-04693108 , version 1 (10-09-2024)

Identifiants

Citer

Alejandro Enriquez-Cabrera, Xinyu Yang, Seyed Ehsan Alavi, Lionel Salmon, Azzedine Bousseksou. Self-Healing Composite Polymers Based on Spin Crossover Materials for Multidirectional Preprogrammed Actuation. ACS Applied Polymer Materials, 2024, 6 (15), pp.9364-9374. ⟨10.1021/acsapm.4c02098⟩. ⟨hal-04693108⟩
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