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. 2022 Jul 25;12:12009. doi: 10.1038/s41598-022-16156-9

Figure 1.

Figure 1

Molecular structure and self-healing mechanism for PEMA4F21. (a) Chemical structure and schematic illustration of the aggregation state of the fluorinated poly(ethyl acrylate-random-methyl acrylate) (PEMA) specimen PEMA4F21. (b) Photograph of the ultrafast self-healing behavior of a cut PEMA4F21 block. (c) Schematic illustration of the self-healing mechanism of PEMA4F21. PEMA segments cohere via weak but abundant intermolecular van der Waals interactions at the cut faces. The approach of PEMA segments is accelerated via segmental diffusion between the cut faces induced by the network rearrangement.