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

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外文摘要：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 PAxEy elas-tomers using a simple synthesis step.This strategy stabilizes the PTA chains by constructing multiple non-covalent cross-linked dynamic net-works,endowing materials with excellent strength and toughness(tensile strength of 288 kPa,toughness of 278.2 kJ/m3),admirable self-healing properties(self-healing efficiency of 121.6％within 7 h at 70 ℃),and good biocompatibility.The PAxEy 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.

外文关键词：

Thioctic acidIon clustersMultiple dynamic networksSelf-healing strengtheningFlexible strain sensor

作者：

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

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作者单位：

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

基金：

National Natural Science Foundation of ChinaGuangdong Basic and Applied Basic Research FoundationGuangdong Project of R&D Plan in Key Areas

项目编号：

520730992024A15150108472020B010180001

出版年：

2024

DOI：

10.1007/s10118-024-3210-9

高分子科学(英文版)

中国化学会　中国科学院化学研究所

高分子科学(英文版)

CSTPCD

影响因子：0.721

ISSN：0256-7679

年,卷(期)：2024.42(10)