基于超分子相互作用的自愈合聚氨酯材料
Self-healing polyurethane materials based on supramolecular interactions
王陈亮 1杨建军 1吴庆云 1吴明元 1张建安 1刘久逸1
作者信息
- 1. 安徽大学 化学化工学院 安徽省水基高分子材料高性能化工程实验室,安徽 合肥 230601
- 折叠
摘要
聚氨酯材料由于其固有的氢键结构被认为是一种理想的自愈合材料.将超分子化学体系引入到聚氨酯中,可以获得性能更加出色的自愈合材料.这些基于超分子相互作用的自愈合聚氨酯材料在受损后能够恢复其大部分物理和化学性质,具有优异的性能.该文首先从不同类型的愈合机理出发,综述了近年来基于超分子相互作用的自愈合聚氨酯材料,包括氢键结合体系、基于芳香基的 π-π 堆积体系、链段侧链中含有离子基团并彼此形成交联点的离子交联聚合物体系、金属离子与配体进行配位引起材料交联的金属配体相互作用体系、大环分子与特定大小的分子形成包合物的主客互动体系.然后展望了自愈合聚氨酯未来发展优势.
Abstract
Polyurethane materials are considered ideal self-healing materials due to their inherent hydrogen bonding structure.It has been found that introduction of supramolecular chemistry into polyurethane can achieve even better performance in self-healing,with most of their physical and chemical properties recovered after damage.Herein,the recent advances in supramolecule-based self-healing polyurethane materials with different healing mechanisms were reviewed,including widely used hydrogen bonding systems,aromatic π-π stacking systems,ion-crosslinked polymer systems with ionic side chains that formed interlocking points,metal-ligand interaction systems that crosslinked materials through coordination of metal ions and ligands,and host-guest interaction systems where macrocyclic molecules interacted with specific sized molecules.Finally,the future development directions of self-healing polyurethane were discussed.
关键词
自愈合/聚氨酯/超分子作用/动态键/氢键/配位键Key words
self-healing/polyurethane/supramolecular interactions/dynamic bonds/hydrogen bonds/coordination bonds引用本文复制引用
基金项目
国家自然科学基金项目(51973001)
安徽省科技计划重点项目(1704a0902018)
出版年
2024
NETL
NSTL
万方数据