Understanding the Self‐Healing Mechanism of Polyurethane Elastomer Based on Hydrogen Bonding Interactions through Molecular Dynamics Simulation

Front Cover: The healing behavior of polyurethane elastomer is studied based on microcrack models by molecular dynamics simulation. Dynamic exchange is visually observed between different hydrogen bonds. Meanwhile, the strength, type, number of different types, and existence time of hydrogen bonds are elaborated. This study deepens the understanding of the mechanism about healing based on hydrogen bonding interactions. This is reported by Meng Zhang, Yanlong Luo, and co-workers in article number 2100051.