A Terbium Coordination Cross-linked Tough Metallo-elastomer Showing Fluorochromism in Response to Multistimuli

Ming-Hui Wei; Ying-Ying Xu; Qiu-Li Tan; Bo Liu; Yi-Jing Nie; Geng-Sheng Weng

doi:10.1007/s10118-025-3458-8

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A Terbium Coordination Cross-linked Tough Metallo-elastomer Showing Fluorochromism in Response to Multistimuli

RESEARCH ARTICLE | Updated：2025-12-03

- A Terbium Coordination Cross-linked Tough Metallo-elastomer Showing Fluorochromism in Response to Multistimuli
- A Terbium Coordination Cross-linked Tough Metallo-elastomer Showing Fluorochromism in Response to Multistimuli
- Chinese Journal of Polymer Science 2025年43卷第12期页码：2349-2361
- Affiliations：
  
  a.School of Materials Science and Chemical Engineering, State Key Laboratory Base of Novel Functional Materials and Preparation Science, Ningbo University, Ningbo 315211, China
  b.Institute of Polymer Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
- Author bio：
  
  nieyijing@ujs.edu.cn (Y.J.N.)
  wenggengsheng@nbu.edu.cn (G.S.W.)
- Funds：
  
  This work was financially supported by the National Natural Science Foundation of China (Nos. 22175100 and 52173020) and the Natural Science Foundation of Zhejiang Province (No. LY22E030001), and the Natural Science Foundation of Ningbo (No. 2022J102).;Electronic supplementary information (ESI) is available free of charge in the online version of this article at http://doi.org/10.1007/s10118-025-3458-8.
- DOI：10.1007/s10118-025-3458-8
  中图分类号： [M
- 收稿：2025-08-13，
  
  录用：2025-09-18，
  
  网络首发：2025-11-19，
  
  纸质出版：2025-12-15
- Accepted：
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Wei, M. H.; Xu, Y. Y.; Tan, Q. L.; Liu, B.; Nie, Y. J.; Weng, G. S. A Terbium coordination cross-linked tough metallo-elastomer showing fluorochromism in response to multistimuli. Chinese J. Polym. Sci. 2025, 43, 2349–2361

Ming-Hui Wei, Ying-Ying Xu, Qiu-Li Tan, et al. A Terbium Coordination Cross-linked Tough Metallo-elastomer Showing Fluorochromism in Response to Multistimuli[J]. Chinese Journal of Polymer Science, 2025, 43(12): 2349-2361.
Wei, M. H.; Xu, Y. Y.; Tan, Q. L.; Liu, B.; Nie, Y. J.; Weng, G. S. A Terbium coordination cross-linked tough metallo-elastomer showing fluorochromism in response to multistimuli. Chinese J. Polym. Sci. 2025, 43, 2349–2361 DOI： 10.1007/s10118-025-3458-8.

Ming-Hui Wei, Ying-Ying Xu, Qiu-Li Tan, et al. A Terbium Coordination Cross-linked Tough Metallo-elastomer Showing Fluorochromism in Response to Multistimuli[J]. Chinese Journal of Polymer Science, 2025, 43(12): 2349-2361. DOI： 10.1007/s10118-025-3458-8.

摘要

A Tb-carboxyl-imidazole coordination-crosslinked carboxylated nitrile butadiene rubber (XNBR) elastomer that exhibits high mechanical robustness

fluorochromism

and white-light emission is reported. This coordination cross-linked tough elastomer paves a new way for fabricating soft devices and sensors

where optical information displays and optical signal responses are required.

Abstract

Herein

we reported a Tb-carboxyl-imidazole coordination-crosslinked carboxylated nitrile butadiene rubber (XNBR) elastomer design that exhibits high mechanical robustness

fluorochromism

and white-light emission. Imidazole (Im)

a toughening

sensitizing

and self-emissive ligand

highly intensified the f

luorescence emission

remarkably toughened the elastomer

and imparted multistimuli responsiveness to the elastomer. The Tb

ions acted as cross-linking centers and provided high-temperature sensitivity of fluorescence emission (more sensitive than Eu

ions). The as-prepared XNBR/Tb/Im elastomer

with excellent puncture resistance

exhibited an ultimate extensibility of about 3100% and the highest tensile strength of 22 MPa. Experimental and theoretical investigations have demonstrated that Tb

ions are more likely to interact with Im ligands with increasing amounts of Im. The number of coordination cross-links with higher cross-linking functionalities showed an increasing trend during stretching. The elastomer exhibited an excitation wavelength and temperature-dependent green emission. By introducing red-emissive Eu

into the elastomer

a white-light-emitting XNBR/Tb/Eu/Im elastomer with chemo-fluorochromism was fabricated. The XNBR/Tb/Eu/Im elastomer exhibited stable white-light emission during both heating and stretching. Changing the temperature only resulted in a variation in the intensity of the white light. We demonstrated the potential applications of these elastomers in patterning and information anti-counterfeiting/encryption. This coordination crosslinked tough elastomer with fluorochromism and white-light emission paves a new way to fabricate soft devices and sensors

where optical information displays and optical signal responses are required.

关键词

Keywords

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