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Recycling box filled with clear plastic bottles
Reversible, dynamic covalent diketoenamine bonds. Diketoenamine bonds form spontaneously from triketones and both aromatic and aliphatic amines. Under strongly acidic conditions in water, the diketoenamine bond hydrolyses to the triketone and an ammonium
Mixed polymer decolouration, additive removal and closed-loop recycling of fibre-reinforced composites. Images from left to right, 1. Red, blue, yellow and black samples of PDK-6(TREN) were completely depolymerized at room temperature in 5.0 M H2SO4 to yi