Meurer Josefine, Hniopek Julian, Dahlke Jan, Schmitt Michael, Popp Jürgen, Zechel Stefan, Hager Martin D
Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldstr. 10, Jena, 07743, Germany.
Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, Jena, 07743, Germany.
Macromol Rapid Commun. 2021 Apr;42(8):e2000636. doi: 10.1002/marc.202000636. Epub 2020 Dec 28.
This article presents novel biobased ionomers featuring self-healing abilities. These smart materials are synthesized from itaconic acid derivates. Large quantities of itaconic acid can be produced from diverse biomass like corn, rice, and others. This study presents a comprehensive investigation of their thermal and mechanical properties via differential scanning calorimetry (DSC), thermo gravimetric analysis (TGA), and FT-Raman and FT-IR measurements as well as dynamic mechanic analysis. Within all these measurements, different kinds of structure-property relationships could be derived from these measurements. For example, the proportion of ionic groups enormously influences the self-healing efficiency. The investigation of the self-healing abilities reveals healing efficiencies up to 99% in 2 h at 90 °C for the itaconic acid based ionomer with the lowest ionic content.
本文介绍了具有自修复能力的新型生物基离聚物。这些智能材料由衣康酸衍生物合成。大量的衣康酸可从玉米、大米等多种生物质中生产。本研究通过差示扫描量热法（DSC）、热重分析（TGA）、傅里叶变换拉曼光谱和傅里叶变换红外光谱测量以及动态力学分析，对其热性能和力学性能进行了全面研究。在所有这些测量中，可以从这些测量中得出不同类型的结构-性能关系。例如，离子基团的比例极大地影响自修复效率。对自修复能力的研究表明，离子含量最低的基于衣康酸的离聚物在90℃下2小时内的修复效率高达99%。
