Abstract
Fabricating a single polymer network with a combination of multi-shape memory effect (multiple-SME), solid-state plasticity, recyclability and self-healing behavior remains challenges. We designed imine bonds and ionic hydrogen bonds dual crosslinked polybutadiene (PB) networks. The resultant PB networks showed triple-shape memory effect (triple-SME), where imine bonds could be used to fix the permanent shape and ionic hydrogen bonds and glass transition acted as the transition segments for fixing/releasing the temporary shapes. Additionally, the dual dynamic bonds offered PB networks outstanding solid-state plasticity, recyclability and self-healing behavior. This strategy provides some insights for preparing shape memory polymers integrating multiple-SME and multi-functionality.
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