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

被引：0

作者：

Enriquez-Cabrera, Alejandro ^{[1
,2
]}

Yang, Xinyu ^{[1
,2
]}

Alavi, Seyed Ehsan ^{[1
,2
]}

Salmon, Lionel ^{[1
,2
]}

Bousseksou, Azzedine ^{[1
,2
]}

机构：

[1] CNRS, LCC, F-31077 Toulouse, France

[2] Univ Toulouse, UPS, INP, F-31077 Toulouse, France

来源：

ACS APPLIED POLYMER MATERIALS | 2024年 / 6卷 / 15期

基金：

欧洲研究理事会;

关键词：

spin crossover; thermoplasticpolyurethane; self-healing; dual dynamic bond; actuators; POLYURETHANES; ELASTOMER; ENHANCE;

D O I：

10.1021/acsapm.4c02098

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页码：9364 / 9374

页数：11

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