A new paper by Hui-Ying Lai titled "A Self-Healing and Shape Memory Polymer that Functions at Body Temperature" was published by Molecules !
In this paper, we designed a polymer network with a permanent covalent crosslinking and abundant weak hydrogen bonds. The former introduces elasticity responsible and maintain the permanent shape, and the latter contributes to the temporary shape via network rearrangement. The obtained PDMS-COO-E polymer films exhibit excellent mechanical properties and the capability to eciently self-heal for 6 h at room temperature. Furthermore, the samples turn from a viscous state into an elastic state at 37 C. Therefore, this polymer has shape memory eects triggered by body temperature. This unique material will have a wide range of applications in many fields, containing wearable electronics, biomedical devices, and 4D printing.
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