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Depolymerization of polyesters catalyzed by binuclear metal complexes
Applied Ocean Research
2025
Yanfen Wu,
Zhiqiang Niu
Summary
Researchers reviewed binuclear metal complex catalysts for polyester depolymerization, covering reaction mechanisms and applications including polyester-cotton chemical recycling, selective material recovery, bioplastic composting degradation, and environmental breakdown of microplastics.
废弃聚酯的化学回收是缓解塑料污染、实现废弃物资源化利用的有效途径. 然而, 聚酯解聚过程动力学缓慢, 现有催化体系的催化效率有待提升. 本文总结了课题组近年来利用双核金属配合物催化剂通过分子内亲核取代实现聚酯高效解聚的相关进展. 首先讨论双核金属配合物的催化作用机制与结构设计优化; 然后介绍其在涤棉混纺化学回收、混合聚酯全组分选择性回收、生物基塑料堆肥降解以及水体微塑料环境降解中的应用; 最后讨论双核催化剂在聚酯塑料化学回收中面临的主要挑战, 并对未来的研究方向与应用前景进行了展望.