Second-Generation Soft Actuators Driven by NIR Light Based on Croconaine Dye-Doped Vitrimers
Source abstract
Abstract
Soft actuators with photo-response can be selectively driven by the light source, but it is challenging to achieve a selective response of multiple components under a uniform light field, which is actually of great importance for the development of soft robots. In this work, a series of near-infrared light (NIR)-responsive vitrimers (CR-vitrimers) are synthesized by carboxylate transesterification using carboxyl-bearing croconaine dye (CR-800) as a photothermal agent (PTA). NIR-responsive liquid crystalline elastomers (CR-vitrimer-LCEs) under NIR laser (λ max = 808 nm) without the template can be further prepared. More importantly, the dynamic covalent bonding properties of vitrimer allow for the fabrication of a hand-shaped actuator by hot pressing, consisting of “fingers” with different NIR-response threshold values. After programming as needed, the hand-shaped actuator successfully achieves local and sequential control under a uniform NIR light field.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced Materials and Mechanics · Polymer composites and self-healing · Advanced Sensor and Energy Harvesting Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
State Key Laboratory of Radiation Medicine and Protection, School of Radiological and Interdisciplinary Sciences (RADX), Soochow University, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Suzhou 215123, China
Funding
National Natural Science Foundation of China · Priority Academic Program Development of Jiangsu Higher Education Institutions
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