A Strong, Tough, and Self-Healing Strengthening Thioctic Acid-based Elastomer for Highly Reliable Flexible Strain Sensor

Xin-Yu Chen; Yu-Bing Fu; Xue-Ling Yan; Lan Liu

doi:10.1007/s10118-024-3210-9

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A Strong, Tough, and Self-Healing Strengthening Thioctic Acid-based Elastomer for Highly Reliable Flexible Strain Sensor

RESEARCH ARTICLE | Updated：2024-09-23

- A Strong, Tough, and Self-Healing Strengthening Thioctic Acid-based Elastomer for Highly Reliable Flexible Strain Sensor
- Chinese Journal of Polymer Science Vol. 42, Issue 10, Pages: 1610-1618(2024)
- Affiliations：
  
  School of Materials Science and Engineering, Key Lab of Guangdong Province for High Property and Functional Polymer Materials, South China University of Technology, Guangzhou 510641, China
- Author bio：
  
  psliulan@scut.edu.cn
- Funds：
- DOI：10.1007/s10118-024-3210-9
  CLC：
- Published：01 October 2024，
  
  Published Online：27 August 2024，
  
  Received：30 April 2024，
  
  Revised：27 June 2024，
  
  Accepted：19 July 2024
- Accepted：
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Chen, X. Y.; Fu, Y. B.; Yan, X. L.; Liu, L. A strong, tough, and self-healing strengthening thioctic acid-based elastomer for highly reliable flexible strain sensor. Chinese J. Polym. Sci. 2024, 42, 1610–1618

Xin-Yu Chen, Yu-Bing Fu, Xue-Ling Yan, et al. A Strong, Tough, and Self-Healing Strengthening Thioctic Acid-based Elastomer for Highly Reliable Flexible Strain Sensor. [J]. Chinese Journal of Polymer Science 42(10):1610-1618(2024)
Chen, X. Y.; Fu, Y. B.; Yan, X. L.; Liu, L. A strong, tough, and self-healing strengthening thioctic acid-based elastomer for highly reliable flexible strain sensor. Chinese J. Polym. Sci. 2024, 42, 1610–1618 DOI： 10.1007/s10118-024-3210-9.

Xin-Yu Chen, Yu-Bing Fu, Xue-Ling Yan, et al. A Strong, Tough, and Self-Healing Strengthening Thioctic Acid-based Elastomer for Highly Reliable Flexible Strain Sensor. [J]. Chinese Journal of Polymer Science 42(10):1610-1618(2024) DOI： 10.1007/s10118-024-3210-9.

摘要

We have developed the PAxEy supramolecular elastomers based on the thermal growth of ion clusters and dynamic disulfide polymer frameworks

which simultaneously exhibit excellent strength and toughness

admirable self-healing properties

and good biocompatibility.

Abstract

Elastomers with high strength and toughness

excellent self-healing properties

and biocompatibility have broad application prospects in wearable electronics and other fields

but preparing it remains a challenge. In this work

we propose a highly adaptable strategy by introducing the small molecule crosslinking agent of triethanolamine (TEA) to the poly(thioctic acid) (PTA) chains and preparing the PA

elastomers using a simple synthesis step. This strategy stabilizes the PTA chains by constructing multiple non-covalent cross-linked dynamic networks

endowing materials with excellent strength and toughness (tensile strength of 288 kPa

toughness of 278.2 kJ/m

)

admirable self-healing properties (self-healing efficiency of 121.6% within 7 h at 70 °C)

and good biocompatibility. The PA

elastomers can also be combined with MWNTs to become flexible strain sensors

which can be used to monitor human

joint movements with high sensitivity

repeatable responses

and stability.

关键词

Keywords

Thioctic acidIon clustersMultiple dynamic networksSelf-healing strengtheningFlexible strain sensor

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