Self-repairing elastomer based on imidazole π–π stacking interaction
Author(s): |
Shaojun Chen
Zhenghe Ren Ming Chen Heng Chen Haitao Zhuo Haiqiang Zhong |
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Medium: | journal article |
Language(s): | English |
Published in: | Smart Materials and Structures, 19 October 2023, n. 11, v. 32 |
Page(s): | 115026 |
DOI: | 10.1088/1361-665x/ad026f |
Abstract: |
Most self-healing materials have complex chemical structures and require cumbersome preparation processes, which seriously limit their large-scale application in the fields of electronic skins, wearable devices, biomedical applications and soft robotics. In this study, self-healing elastomers based on π–π stacking between imidazole groups were prepared by simpler and faster photo-polymerization with butyl acrylate (BA) and 1-vinyl imidazole (VIM), coded as BVn. Due to the imidazole groups in the side chains, the prepared elastomers had excellent self-repairing properties. After healing at 60 °C for 24 h, the strength and elongation at break of the repaired sample recovered to 97.2% and 95.4% of the original values, respectively. Importantly, the BVn based elastomers relied on π–π stacking interactions between imidazole groups rather than covalent crosslinks and could be recycled. These new self-repairing composite elastomers with high thermal stabilities, high elongations at break, good recoverabilites and high self-repairing efficiencies have great application potentials. |
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data sheet - Reference-ID
10742590 - Published on:
28/10/2023 - Last updated on:
28/10/2023