Fig. 6: Preparation and Characterization of LPEI-BMAx. | Nature Communications

Fig. 6: Preparation and Characterization of LPEI-BMAx.

From: Closed-loop chemical recycling of cross-linked polymeric materials based on reversible amidation chemistry

Fig. 6

a Schematic of the polymer network LPEI-BMA synthesized by the side-chain cross-linking and its depolymerization under the acidic condition. b FT-IR spectra of the cross-linker BMA, polymer network LPEI-BMA0.050, and LPEI. c DSC curves, d DMA curves, and (e) representative stress-strain curves of LPEI-BMAx samples with varied molar ratio x between the cross-linkers and ethylene imine units. f Photographs of chemical recycling of the polymer network LPEI-BMA0.10 into the feedstocks LPEI and BMA (scale bar: 1 cm). g FT-IR spectra, h DSC curves, and i stress-strain curves of LPEI-BMA0.10 and repolymerized LPEI-BMA0.10 from recycled monomers.

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