Fig. 8From: Development of an efficient route for combined recycling of PET and cotton from mixed fabrics 1H NMR spectra and 13C NMR spectra of the filtrate from large-scale experiments (10% NaOH at 90 °C). In a and c, results from the experiments without BTBAC are shown, and in b and d, results from experiments with 52 mmol BTBAC/kg solution are shown. Before analysis, the water was evaporated from the filtrate, and the remaining sample was dissolved in DMSO-d6 Back to article page