Photo-responsive Diels-Alder based azobenzene-functionalized main-chain liquid crystal networks

被引:0
|
作者
Park, Minwook [1 ]
Campos, Jesus Guillen [1 ]
Stricker, Friedrich [1 ]
de Alaniz, Javier Read [1 ]
机构
[1] Univ Calif Santa Barbara, Dept Chem & Biochem, Santa Barbara, CA 93106 USA
基金
美国国家科学基金会;
关键词
BEHAVIOR;
D O I
10.1039/d4tc01281j
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Light-responsive liquid crystal elastomer networks (LCNs) have received significant interest due to their potential application in soft robotics and shape-morphing devices. Here, we present a systematic examination of light-responsive LCNs prepared using a catalyst-free Diels-Alder cycloaddition and a new azobenzene functionalized monomer for main-chain incorporation. The networks have robust mechanical stiffness that can be reversibly modulated by 1 GPa by turning the UV light on and off. This study highlights the contribution of photothermal softening to reversibly control rheological properties of the newly developed LCNs and demonstrates the ability to tune the modulus on demand. We believe this work will guide future developments of light-responsive LCNs based on the newly developed Diels-Alder cycloaddition. This study highlights the contribution of photothermal softening to reversibly control rheological properties of the newly developed LCNs prepared using a catalyst-free Diels-Alder cycloaddition and demonstrates the ability to tune the modulus.
引用
收藏
页码:11976 / 11981
页数:6
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