Fig. 4 | Nature Communications

Fig. 4

From: Solvent-assisted programming of flat polymer sheets into reconfigurable and self-healing 3D structures

Fig. 4The alt text for this image may have been generated using AI.

The mechanism of solvent-induced transesterification. a Synthesis of epoxy vitrimer. b Stress-relaxation curves for transesterification at three different temperatures (labeled on the plot), making a comparison between the original network, the thermally remolded one, and the network that was dried after extensive swelling (confirming that its BER remains the same). c An illustration of transesterification when swelling in solvent. d Reshaping a strip to a spiral by solvent under external force. Scale bar: 1 cm. e Reshaping a star with external force. Scale bar: 1 cm. f Reshaping a cube vitrimer by depositing solvent onto the designed edges and folding/unfolding with external force simultaneously in each procedure. Scale bar: 1 cm

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