聚烯烃
单体
共聚物
镍
乙烯
催化作用
木质素
高分子化学
自愈材料
材料科学
自愈
化学
聚合物
有机化学
医学
替代医学
图层(电子)
病理
作者
Jiawei Chen,Ao Chen,Chen Zou,Changle Chen
标识
DOI:10.1002/ange.202404603
摘要
Polymers may suffer from sudden mechanical damages during long‐term use under various harsh operating environments. Rapid and real‐time self‐healing will extend their service life, which is particularly attractive in the context of circular economy. In this work, a lignin cluster polymerization strategy (LCPS) was designed to prepare a series of lignin functionalized polyolefin composites with excellent mechanical properties through nickel catalyzed copolymerization of ethylene and lignin cluster monomers. These composites can also achieve rapid self‐healing within 30 seconds under a variety of extreme usage environments (underwater, seawater, extremely low temperatures as low as ‐60 °C, organic solvents, acid alkali solvents, etc.), which is of great significance for real‐time self‐healing of sudden mechanical damage. More importantly, the dynamic cross‐linking network within these composites enable great re‐processability and amazing sealing performances.
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