Fig. 5: Recycling and closed-loop recycling of the DiMPUs. | Nature Communications

Fig. 5: Recycling and closed-loop recycling of the DiMPUs.

From: Entropy-driven toughening and closed-loop recycling of polymers via divergent metal-pyrazole interactions

Fig. 5

a The selective recycling of DiMPU-Cu1 from a plastic waste stream containing PS (polystyrene), PA (polyamide), PMMA (polymethyl methacrylate), PVC (polyvinyl chloride), PU (polyurethane), PET (polyethylene terephthalate), ABS (acrylonitrile butadiene styrene), PP (polypropylene), PC (polycarbonate), and PE (polyethylene). b Mechanical properties of the original and recycled DiMPU-Cu1. c Time-dependent degradation profiles of DPU L and urethane analog in 2 M DCl/d6-DMSO at 70 °C. d A schematic representation of closed-loop recycling of DiMPU-Cu1 and polyurea thermosets (All 1H NMR spectra were recorded in d6-DMSO.). THDI trimer of hexamethylene diisocyanate.

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