Reprocessable Epoxy–Anhydride Resin Enabled by a Thermally Stable Liquid Transesterification Catalyst
Huan Liang, Wendi Tian, Hongtu Xu, Yuzhen Ge, Yang Yang, Enjian He, Zhijun Yang, Yixuan Wang, Shuhan Zhang, Guoli Wang, Qiulin Chen, Yen Wei, Yan Ji, Keon-Soo Jang · 2024
Read Reprocessable Epoxy–Anhydride Resin Enabled by a Thermally Stable Liquid Transesterification Catalyst by Huan Liang, Wendi Tian, Hongtu Xu, Yuzhen Ge, Yang Yang, Enjian He, Zhijun Yang, Yixuan Wang, Shuhan Zhang, Guoli Wang, Qiulin Chen, Yen Wei, Yan Ji, Keon-Soo Jang (2024) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-11598466.txt.
Description
Huan Liang and co-authors make a crosslinked epoxy that can be reshaped and recycled with heat. Classic epoxies set permanently, which blocks repair and reuse. Adding bonds that can swap partners under heat fixes that, but the catalysts that drive swapping often clump, evaporate, or break down.
Their 2024 answer is a liquid catalyst built from an imidazole derivative with a bulky, electron-pulling design. It mixes evenly into the resin at room temperature and stays intact above 200 degrees Celsius. When hot, it speeds bond swapping enough to release built-up stress in the cured resin. The set epoxy can then be recycled and reshaped. The strategy widens where such resins can serve.
Catalog record
| CREATOR | Huan Liang, Wendi Tian, Hongtu Xu, Yuzhen Ge, Yang Yang, Enjian He, Zhijun Yang, Yixuan Wang, Shuhan Zhang, Guoli Wang, Qiulin Chen, Yen Wei, Yan Ji, Keon-Soo Jang |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 17 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |