High strength, stable and self-healing copolyimide for defects induced by mechanical and electrical damages
High strength, stable and self-healing copolyimide for defects induced by mechanical and electrical damages
Self-healing of damage is a common phenomenon in organisms but is hardly ever encountered in rigid polymer materials. For next-generation electricals and electronics, it is crucial to accurately mimic organisms to detect and heal mechanical/electrical damage. Herein, disulfide bond exchange is designed to introduce the self-healing ability in a copolymerized polyimide (copolyimide). A copolyimide insulation film with two diamine monomers is successfully prepared, which also possesses good self-healing ability after being mechanical/electrical damaged. Furthermore, the self-healing copolyimide film still maintains its good Young's modulus (E) >4 GPa, high thermal stability with glass transition temperature (Tg) >190 °C, and excellent insulation property with breakdown strength (Eb) >300 kV mm−1. The combination of the simple copolymerization and unique self-healing ability is suitable for high Tg polyimide to make this an ideal method for insulation field.
11307-11315
Wan, Baoquan
10eda847-7a21-452e-b86a-d6049173bc9d
Dong, Xiaodi
6aeacda6-fca1-47bc-8785-9056f9da3c77
Yang, Xing
7967eb9d-c65d-4711-b242-c56aedd50e74
Zheng, Ming-Sheng
1e0d4fe5-b98a-4349-a59f-189725d40bc1
Chen, George
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Zha, Jun-Wei
203353bd-40ed-474f-8a83-d0ccdbcb5950
11 August 2022
Wan, Baoquan
10eda847-7a21-452e-b86a-d6049173bc9d
Dong, Xiaodi
6aeacda6-fca1-47bc-8785-9056f9da3c77
Yang, Xing
7967eb9d-c65d-4711-b242-c56aedd50e74
Zheng, Ming-Sheng
1e0d4fe5-b98a-4349-a59f-189725d40bc1
Chen, George
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Zha, Jun-Wei
203353bd-40ed-474f-8a83-d0ccdbcb5950
Wan, Baoquan, Dong, Xiaodi, Yang, Xing, Zheng, Ming-Sheng, Chen, George and Zha, Jun-Wei
(2022)
High strength, stable and self-healing copolyimide for defects induced by mechanical and electrical damages.
Journal of Materials Chemistry C, 10 (31), .
(doi:10.1039/D2TC01605B).
Abstract
Self-healing of damage is a common phenomenon in organisms but is hardly ever encountered in rigid polymer materials. For next-generation electricals and electronics, it is crucial to accurately mimic organisms to detect and heal mechanical/electrical damage. Herein, disulfide bond exchange is designed to introduce the self-healing ability in a copolymerized polyimide (copolyimide). A copolyimide insulation film with two diamine monomers is successfully prepared, which also possesses good self-healing ability after being mechanical/electrical damaged. Furthermore, the self-healing copolyimide film still maintains its good Young's modulus (E) >4 GPa, high thermal stability with glass transition temperature (Tg) >190 °C, and excellent insulation property with breakdown strength (Eb) >300 kV mm−1. The combination of the simple copolymerization and unique self-healing ability is suitable for high Tg polyimide to make this an ideal method for insulation field.
Text
Revised Paper_GC
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More information
Accepted/In Press date: 12 July 2022
e-pub ahead of print date: 12 July 2022
Published date: 11 August 2022
Additional Information:
Funding Information:
This work was financially supported by the National Natural Science Foundation of China (No. 51977114), Fundamental Research Funds for the Central Universities (No. FRF-TP-20-02B2), and Scientific and Technological Innovation Foundation of Foshan (BK21BE006).
Publisher Copyright:
© 2022 The Royal Society of Chemistry.
Identifiers
Local EPrints ID: 469979
URI: http://eprints.soton.ac.uk/id/eprint/469979
ISSN: 2050-7526
PURE UUID: bfa750c0-5c53-461e-898f-6e2623212378
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Date deposited: 29 Sep 2022 16:45
Last modified: 17 Mar 2024 07:28
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Contributors
Author:
Baoquan Wan
Author:
Xiaodi Dong
Author:
Xing Yang
Author:
Ming-Sheng Zheng
Author:
George Chen
Author:
Jun-Wei Zha
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