Highly Sensitive Thermo-fluorochromic Polymeric Elastomers <italic style="font-style: italic">via</italic> Phenanthroline-mediated Dynamic Tb/Sm-Carboxylate Coordination

Bo Liu; Qiu-Li Tan; Ming-Hui Wei; Ru-Ning Cao; Geng-Sheng Weng

doi:10.1007/s10118-026-3811-6

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Highly Sensitive Thermo-fluorochromic Polymeric Elastomers via Phenanthroline-mediated Dynamic Tb/Sm-Carboxylate Coordination

RESEARCH ARTICLE | Updated：2026-09-29

- Highly Sensitive Thermo-fluorochromic Polymeric Elastomers via Phenanthroline-mediated Dynamic Tb/Sm-Carboxylate Coordination
- Highly Sensitive Thermo-fluorochromic Polymeric Elastomers via Phenanthroline-mediated Dynamic Tb/Sm-Carboxylate Coordination
- Chinese Journal of Polymer Science 2026年44卷页码：1-14
- Affiliations：
  
  School of Materials Science and Chemical Engineering, State Key Laboratory Base of Novel Functional Materials and Preparation Science, Key Laboratory of Impact and Safety Engineering, Ministry of Education, Ningbo University, Ningbo 315211, China
- Author bio：
  
  wenggengsheng@nbu.edu.cn
- Funds：
  
  This work was financially supported by the National Natural Science Foundation of China (No. 22175100) and the Natural Science Foundation of Zhejiang Province (No. LY22E030001).;The authors declare no interest conflict.Electronic supplementary information (ESI) is available free of charge in the online version of this article at http://doi.org/10.1007/s10118-026-3811-6.The related data of this work can be obtained from the author for reasonable reasons. The author’s contact information: wenggengsheng@nbu.edu.cn.
- DOI：10.1007/s10118-026-3811-6
  中图分类号：
- 收稿：2026-05-18，
  
  录用：2026-07-09，
  
  网络首发：2026-09-29，
  
  纸质出版：2026-09
- Accepted：
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Liu, B.; Tan, Q. L.; Wei, M. H.; Cao, R. N.; Weng, G. S. Highly sensitive thermo-fluorochromic polymeric elastomers via phenanthroline-mediated dynamic Tb/Sm-carboxylate coordination. Chinese J. Polym. Sci. https://doi.org/10.1007/s10118-026-3811-6

Bo Liu, Qiu-Li Tan, Ming-Hui Wei, et al. Highly Sensitive Thermo-fluorochromic Polymeric Elastomers via Phenanthroline-mediated Dynamic Tb/Sm-Carboxylate Coordination[J/OL]. Chinese Journal of Polymer Science, 2026, 441-14. DOI: 10.1007/s10118-026-3811-6.
Liu, B.; Tan, Q. L.; Wei, M. H.; Cao, R. N.; Weng, G. S. Highly sensitive thermo-fluorochromic polymeric elastomers via phenanthroline-mediated dynamic Tb/Sm-carboxylate coordination. Chinese J. Polym. Sci. https://doi.org/10.1007/s10118-026-3811-6 DOI：

Bo Liu, Qiu-Li Tan, Ming-Hui Wei, et al. Highly Sensitive Thermo-fluorochromic Polymeric Elastomers via Phenanthroline-mediated Dynamic Tb/Sm-Carboxylate Coordination[J/OL]. Chinese Journal of Polymer Science, 2026, 441-14. DOI: 10.1007/s10118-026-3811-6. DOI：

摘要

Abstract

A tough and self-healable Tb

-and Sm

-containing thermo-fluorochromic (TFC-Sm/Tb) elastomer with highly sensitive and tunable temperature-responsive emission was developed. The elastomer was dynamically cross-linked by Tb

and Sm

ions through coordination with the COOH groups of the carboxylated nitrile butadiene chains

with 1

10-phenanthroline acting as the ancillary ligand. Mechanical investigations reveal that Tb

cross-linking is more effective in enhancing toughness. The TFC-Sm/Tb elastomer also has high self-healing efficiency and provides effective adhesion to the metal surface. Fluorescence spectroscopic studies showed that Tb

mainly displays an intense spin-forbidden interconfigurational 4f

→4f

excitation transition

whereas Sm

excitation is dominated by a broad Phen-to-Sm

energy transfer band from 250 nm to 380 nm. By adjusting the excitation wavelength or Sm

/Tb

molar ratio

the emission color can be easily tuned from green to red. Notably

the Tb

emission is highly tem

perature-sensitive and undergoes pronounced thermal quenching upon heating

while the Sm

emission remains nearly invariant from 25 °C to 100 °C. This distinct contrast enabled highly sensitive thermo-fluorochromism

yielding a high relative thermal sensitivity of 8.6 (%)/K. As a proof of concept

our work paves the way for the fabrication of thermofluorochromic materials with potential applications in luminescent textiles

anti-counterfeiting

and temperature-sensing fluorochromic coatings.

关键词

Keywords

references

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Highly Sensitive Thermo-fluorochromic Polymeric Elastomers via Phenanthroline-mediated Dynamic Tb/Sm-Carboxylate Coordination

DOI：10.1007/s10118-026-3811-6

摘要

Abstract

关键词

Keywords

references