解锁从生物资源中获得的可光固化聚氨酸热中的双重循环
Özgün Dağlar1, Yi-Ru Chen1, Željko Tomović1
1Polymer Performance Materials Group, Department of Chemical Engineering and Chemistry, and Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, 5600 MB, Eindhoven, The Netherlands.
Angewandte Chemie (International ed. in English)
|June 21, 2025
概括
这项研究引入了可回收的聚氨酸热聚,由生物衍生性尤根醇合成. 这些先进材料可以通过化学循环回收成单体或再生聚合物,保持它们在循环经济中的高性能.
科学领域:
- 聚合物化学 聚合物化学
- 材料科学 材料科学 材料科学
- 可持续化学 可持续化学
背景情况:
- 聚氨酸热为高性能应用提供了出色的热和机械性能.
- 它们的交联结构传统上阻止了回收利用,这给可持续性带来了挑战.
- 最近的进展表明,动态重新排列可以实现热固化可逆性.
研究的目的:
- 使用生物衍生单体开发可回收的聚氨酸热.
- 为这些材料建立高效的化学回收途径.
- 为了证明高性能热中闭环回收的潜力.
主要方法:
- 从eugenol中合成一种生物衍生的酸盐单体.
- 通过 thiol-ene 光聚合物化的聚合,以创建热网络.
- 使用核芳香替代 (SNAr) 化学用于脱聚合和回收.
主要成果:
- 成功合成和聚合生物衍生酸盐热聚合物.
- 证明了两个不同的回收途径:选择性单体回收和闭环聚合物再生.
- 再生聚合物保留了原有的热,机械和热力学性能.
结论:
- 建立了一个可持续的设计策略,用于高性能热的闭环回收.
- 开发的方法为循环聚合物材料提供了一个可扩展的途径.
- 可回收的聚氨酸热具有强大的性能和高效的可回收性.
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