Highly Transparent, Adhesive, and Mechanically Robust Eutectogel <italic style="font-style: italic">via</italic> Metal-coordination Physical Crosslinking for Reliable Flexible Strain Sensors

Jian-Ping Peng; Jia-Huan Xie; Zi-Yi Dai; Tong-Gen Li; Tong-Ling Liu; Wei-Hao Wang; Shi-Yu Zhang; Zhen-Kai Huang

doi:10.1007/s10118-025-3406-7

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Highly Transparent, Adhesive, and Mechanically Robust Eutectogel via Metal-coordination Physical Crosslinking for Reliable Flexible Strain Sensors

RESEARCH ARTICLE | Updated：2025-09-26

- Highly Transparent, Adhesive, and Mechanically Robust Eutectogel via Metal-coordination Physical Crosslinking for Reliable Flexible Strain Sensors
- Chinese Journal of Polymer Science Vol. 43, Issue 10, Pages: 1894-1903(2025)
- Affiliations：
  
  a.School of Environment and Chemical Engineering, Foshan University, Foshan 528000, China
  b.School of Materials and Energy, Foshan University, Foshan 528000, China
- Author bio：
  
  hzk@fosu.edu.cn
- Funds：
- DOI：10.1007/s10118-025-3406-7
  CLC： [M
- Received：16 May 2025，
  
  Revised：2025-06-25，
  
  Accepted：27 June 2025，
  
  Online First：10 September 2025，
  
  Published：05 October 2025
- Accepted：
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Peng, J. P.; Xie, J. H.; Dai, Z. Y.; Li, T. G.; Liu, T. L.; Wang, W. H.; Zhang, S. Y.; Huang, Z. K. Highly transparent, adhesive, and mechanically robust eutectogel via metal-coordination physical crosslinking for reliable flexible strain sensors. Chinese J. Polym. Sci. 2025, 43, 1894–1903

Jian-Ping Peng, Jia-Huan Xie, Zi-Yi Dai, et al. Highly Transparent, Adhesive, and Mechanically Robust Eutectogel via Metal-coordination Physical Crosslinking for Reliable Flexible Strain Sensors[J]. Chinese Journal of Polymer Science, 2025, 43(10): 1894-1903. DOI: 10.1007/s10118-025-3406-7.
Peng, J. P.; Xie, J. H.; Dai, Z. Y.; Li, T. G.; Liu, T. L.; Wang, W. H.; Zhang, S. Y.; Huang, Z. K. Highly transparent, adhesive, and mechanically robust eutectogel via metal-coordination physical crosslinking for reliable flexible strain sensors. Chinese J. Polym. Sci. 2025, 43, 1894–1903 DOI： 10.1007/s10118-025-3406-7.

Jian-Ping Peng, Jia-Huan Xie, Zi-Yi Dai, et al. Highly Transparent, Adhesive, and Mechanically Robust Eutectogel via Metal-coordination Physical Crosslinking for Reliable Flexible Strain Sensors[J]. Chinese Journal of Polymer Science, 2025, 43(10): 1894-1903. DOI: 10.1007/s10118-025-3406-7. DOI：

摘要

A green eutectogel exhibiting high transparency

mechanical strength

stretchability

ionic conductivity

leakage-resistance

interfacial adhesion

and cryogenic tolerance has been developed. A flexible sensor based on the eutectogel demonstrates ideal linear sensitivity

a broad response range

reliable stability

and quick responsiveness

enabling precise monitoring of human motion and information transmission.

Abstract

Eutectogels are considered to have immense application potential in the field of flexible wearable ionotronic devices because of their excellent ionic conductivity

thermal and electrochemical stability

and non-volatility. However

most existing technologies still struggle to achieve synergistic optimization of key performance indicators

such as high mechanical strength and ionic conductivity. To address this challenge

this study successfully prepared a green eutectogel material with outstanding comprehensive properties by leveraging the high solubility of glycerol in a polymerizable deep eutectic solvent (DES) composed of acrylic acid and choline chloride. The resulting eutectogels exhibited a high transparency (89%)

high mechanical strength (up to 2.8 MPa)

and exceptional tensile performance (up to 1385%). The fabricated flexible sensor demonstrated ideal linear sensitivity (gauge factor: 0.88)

a broad response range (1%–100%)

and reliable stability (over 1000 cycles)

enabling the precise monitoring of human motion (

e.g.

finger bending and wrist rotation). The flexible strain sensor based on this eutectogel is expected to show promising prospects for medical monitoring

human-machine interaction

and industrial sensing applications.

关键词

Keywords

references

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Highly Transparent, Adhesive, and Mechanically Robust Eutectogel via Metal-coordination Physical Crosslinking for Reliable Flexible Strain Sensors

DOI：10.1007/s10118-025-3406-7

摘要

Abstract

关键词

Keywords

references