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Self-Healing, Reprocessable, and Degradable Bio-Based Epoxy Elastomer Bearing Aromatic Disulfide Bonds and Its Application in Strain Sensors AITranslate

Shijie Shan; Dongdong Mai; Yaling Lin; Anqiang Zhang
South China University of Technology; Guangdong University of Petrochemical Technology; South China Agricultural University; South China University of Technology
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Publisher: ACS
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Abstract AITranslate

A dicarboxylic acids functional aromatic disulfide (DTSA) and a dimer aliphatic acid (DAA) were used to crosslink epoxidized soybean oil (ESO) to obtain a bio-based epoxy elastomer with comprehensive properties of toughness and stretchability. This work addresses some urgent needs for epoxy networks, such as recyclability, degradability, and mechanical properties. Ratios of permanent and dynamic crosslinks were tuned to yield epoxy elastomers with various characteristics. The bio-based epoxy elastomer in this work took advantages of dynamic aromatic disulfide bonds which can rapidly exchange even at room temperature without external stimuli. Therefore, the epoxy elastomer reported here presented almost quantitative self-healing efficiency and high recovery in terms of mechanical properties after being reprocessed for many times. Besides, incorporation of permanent chemical crosslinks with DAA caused low hysteresis, which made them suitable for fabricating sensitive and durable strain sensor against cyclic strain.

KeyWords AITranslate

biobased selfhealing reprocess aromatic disulfide strain sensor
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Basic Information:

DOI：https://doi.org/10.1021/acsapm.1c00865

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Citation Information:

A dicarboxylic acids functional aromatic disulfide (DTSA) and a dimer aliphatic acid (DAA) were used to crosslink epoxidized soybean oil (ESO) to obtain a bio-based epoxy elastomer with comprehensive properties of toughness and stretchability. This work addresses some urgent needs for epoxy networks, such as recyclability, degradability, and mechanical properties. Ratios of permanent and dynamic crosslinks were tuned to yield epoxy elastomers with various characteristics. The bio-based epoxy elastomer in this work took advantages of dynamic aromatic disulfide bonds which can rapidly exchange even at room temperature without external stimuli. Therefore, the epoxy elastomer reported here presented almost quantitative self-healing efficiency and high recovery in terms of mechanical properties after being reprocessed for many times. Besides, incorporation of permanent chemical crosslinks with DAA caused low hysteresis, which made them suitable for fabricating sensitive and durable strain sensor against cyclic strain.

quote

GB/T 7714-2015 [1] Shijie Shan, Dongdong Mai, Yaling Lin, et al. ACS Applied Polymer Materials, 2021(3). DOI:10.1021/acsapm.1c00865.
MLA [1] Shijie Shan, et al., ACS Applied Polymer Materials, no. 3, 2021, https://doi.org/10.1021/acsapm.1c00865.
APA [1] Shijie Shan, Dongdong Mai, Yaling Lin, & Anqiang Zhang. (2021). ACS Applied Polymer Materials(3). https://doi.org/10.1021/acsapm.1c00865
IEEE [1] Shijie Shan, Dongdong Mai, Yaling Lin, and Anqiang Zhang, ACS Applied Polymer Materials, no. 3, 2021, doi: 10.1021/acsapm.1c00865. keywords: {biobased;selfhealing;reprocess;aromatic disulfide;strain sensor}