Fig. 2: Additive screening and kinetic studies for PA6 alcoholysis. | Nature Communications

Fig. 2: Additive screening and kinetic studies for PA6 alcoholysis.

From: Sustainable recycling of polyamides via C–N bond cleavage facilitated by methyl tosylate under mild conditions

Fig. 2

a Additive screening for PA6 methanolysis. Reaction conditions: the mixture of PA6 (commercial powder, 30 mesh, 1 mmol relative to the molecular weight of the monomer), additive (1.0 equiv.), and MeOH (3 mL) was heated at 140 °C for 16 h. b 1H NMR (400 MHz, DMSO-d6) spectrum of the reaction mixture using TsOMe. c The reaction profile of PA6 conversion and the degree of methanolysis versus time with 1.05 equiv. TsOMe at 140 °C. Each data point represents the average of the triplicate experiments. d PA6 degradation profile under excess TsOH. e Fitting curve of pseudo first-order kinetics over PA6 units. f Initial rate kinetic study of TsOH using ε-CPL as a model substrate.

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