Interfacial Elastic Film with Temperature Mediated-phase Transition Behavior for Tunable Suspended Sensing

Wei Zhou; Yue Han; Peng Xiao; Yi Yu; Yu-Chao Wang; Tao Chen

doi:10.1007/s10118-025-3314-x

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Interfacial Elastic Film with Temperature Mediated-phase Transition Behavior for Tunable Suspended Sensing

RESEARCH ARTICLE | Updated：2025-07-15

- Interfacial Elastic Film with Temperature Mediated-phase Transition Behavior for Tunable Suspended Sensing
- Interfacial Elastic Film with Temperature Mediated-phase Transition Behavior for Tunable Suspended Sensing
- 高分子科学（英文） 2025年43卷第7期页码：1155-1162
- Affiliations：
  
  a.State Key Laboratory of Advanced Marine Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
  b.School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
- Author bio：
  
  xiaopeng@nimte.ac.cn (P.X.)
  tao.chen@nimte.ac.cn (T.C.)
- Funds：
  
  This project was financially supported by the National Key Research and Development Program of China (No. 2022YFC2805200), the National Natural Science Foundation of China (No. 52373094), Zhejiang Provincial Natural Science Foundation (No. LR25E030004), Youth Innovation Promotion Association of the Chinese Academy of Sciences (No.2023313), Sino-German Mobility Program (No. M-0424), Ningbo Major Research and Development Plan Project (No. 20241ZDYF020148), Ningbo International Cooperation (No. 2023H019), and Ningbo Science & Technology Bureau (No. 2024QL003).;Electronic supplementary information (ESI) is available free of charge in the online version of this article at http://doi.org/10.1007/s10118-025-3314-x.
- DOI：10.1007/s10118-025-3314-x
  中图分类号： M
- 收稿：2024-11-15，
  
  修回：2025-01-06，
  
  录用：2025-01-26，
  
  网络首发：2025-04-03，
  
  纸质出版：2025-07-01
- Accepted：
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Zhou, W.; Han, Y.; Xiao, P.; Yu, Y.; Wang, Y. C.; Chen, T. Interfacial elastic film with temperature mediated-phase transition behavior for tunable suspended sensing. Chinese J. Polym. Sci. 2025, 43, 1155–1162

Wei Zhou, Yue Han, Peng Xiao, et al. Interfacial Elastic Film with Temperature Mediated-phase Transition Behavior for Tunable Suspended Sensing[J]. Chinese Journal of Polymer Science, 2025, 43(7): 1155-1162.
Zhou, W.; Han, Y.; Xiao, P.; Yu, Y.; Wang, Y. C.; Chen, T. Interfacial elastic film with temperature mediated-phase transition behavior for tunable suspended sensing. Chinese J. Polym. Sci. 2025, 43, 1155–1162 DOI： 10.1007/s10118-025-3314-x.

Wei Zhou, Yue Han, Peng Xiao, et al. Interfacial Elastic Film with Temperature Mediated-phase Transition Behavior for Tunable Suspended Sensing[J]. Chinese Journal of Polymer Science, 2025, 43(7): 1155-1162. DOI： 10.1007/s10118-025-3314-x.

摘要

A graphene-based elastic film with crystalline-melt phase transition behavior was successfully constructed

which exhibited temperature-mediated dynamic switching between soft and stiff states

further enabling the adaptive tuning of the suspended sensing performance.

Abstract

Controllably tuning the sensing performance of flexible mechanical sensors is important for them to realize on-demand sensing of various mechanical stimuli in different application scenarios. However

current regulating strategies focus on the construction process of individual sensors

the response performance of the as-formed sensors is still hard to autonomously tune with external stimulus changes like human skin. Here

we propose a new strategy that realizes post-tuning of the sensing performance by introducing a temperature-dependent phase transition elastomer into the sensing film. Through an interfacially confined photopolymerization reaction

a graphene-based phase-transition elastomeric (GPTE) film with a robust interface and excellent conductivity is well-formed at the water/air interface. Benefiting from the crystallization-melt dynamic switching in the elastomer network

the GPTE film could experience the reversible transformation between soft (1.65 MPa) and stiff (12.27 MPa) states

showing huge changes of elastic modulus up to seven times near the phase transition temperature (28.5 °C). Furthermore

the GPTE film is designed into a suspended perceptual configuration realizing the dynamic detection of 3D deformation adapted to temperature changes with up to 3.5-fold difference in response sensitivity. Finally

the self-adaptive sensing behavior of temperature-mediated 3D deformation is demonstrated by the effective detection of the dynamic stimulation process of cold and hot water droplets by the GPTE suspended film. The proposed strategy of phase transition-induced post-tuning of sensing performance could greatly facilitate flexible mechanical sensors towards a more intelligent one.

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