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动态脲交联聚丙烯酸酯自修复行为影响参数的详细分析。

Detailed Analysis of the Influencing Parameters on the Self-Healing Behavior of Dynamic Urea-Crosslinked Poly(methacrylate)s.

机构信息

Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany.

Jena Center of Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany.

出版信息

Molecules. 2019 Oct 6;24(19):3597. doi: 10.3390/molecules24193597.

DOI:10.3390/molecules24193597
PMID:31590469
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6804315/
Abstract

For this paper, the self-healing ability of poly(methacrylate)s crosslinked via reversible urea bonds was studied in detail. In this context, the effects of healing time and temperature on the healing process were investigated. Furthermore, the impact of the size of the damage (i.e., area of the scratch) was monitored. Aging processes, counteracting the self-healing process, result in a decrease in the mechanical performance. This effect diminishes the healing ability. Consequently, the current study is a first approach towards a detailed analysis of self-healing polymers regarding the influencing parameters of the healing process, considering also possible aging processes for thermo-reversible polymer networks.

摘要

本文详细研究了通过可逆脲键交联的聚（甲基丙烯酸酯）的自修复能力。在这方面，研究了愈合时间和温度对愈合过程的影响。此外，还监测了损伤（即划痕面积）大小的影响。与自修复过程相反的老化过程会导致机械性能下降。这种效应会降低自修复能力。因此，本研究首次针对热可逆聚合物网络的愈合过程的影响参数，对自修复聚合物进行了详细分析，同时也考虑了可能的老化过程。

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本文引用的文献

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Self-Healing Materials from V- and H-Shaped Supramolecular Architectures.V 形和 H 形超分子结构的自修复材料。
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Two-dimensional Raman correlation spectroscopy reveals molecular structural changes during temperature-induced self-healing in polymers based on the Diels-Alder reaction.
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Self-healing mechanism of metallopolymers investigated by QM/MM simulations and Raman spectroscopy.通过量子力学/分子力学模拟和拉曼光谱研究金属聚合物的自修复机制。
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