NMR analysis; calculation of [M]_eq; calculation of reactivity ratios; non-isothermal DSC analysis.

Fig A, ¹H-NMR spectra of materials; 1: 100/0, 2: 90/10, 3: 80/20, 4: 70/30. Fig B, ¹³C-NMR spectra of materials; 1: 100/0, 2: 90/10, 3: 80/20, 4: 70/30. Fig C, Calibration curves used for the calculation of β_i,j coefficients; a) 100/0, b) 90/10, c) 80/20 and d) 70/30. Fig D, GPC traces of crude samples withdrawn at the end of equilibrium reactions performed at different temperatures; a) 100/0, b) 90/10, c) 80/20 and d) 70/30. Fig E, DSC analysis: a) thermograms of normalized heat flow (W g^-1), b) α and c) dα/dt against T at different heating rates. Fig F, Friedman plots (monomer conversion range: 0.2–0.9); a) 100/0, b) 90/10, c) 80/20 and d) 70/30. Fig G, KAS plots (monomer conversion range: 0.2–0.9); a) 100/0, b) 90/10, c) 80/20 and d) 70/30. Fig H, OFW plots (monomer conversion range: 0.2–0.9); a) 100/0, b) 90/10, c) 80/20 and d) 70/30. Fig I, E_a vs α from Friedman, KAS and OFW methods; a) 100/0, b) 90/10, c) 80/20 and d) 70/30. Fig J, E_a evaluated by a) maximum reaction rate temperatures, b) isoconversional methods and c) numerical methods. Table A, M_n (Da) and α obtained from equilibrium polymerizations at different temperatures; values of M_n are referred to the polyester block. Table B, Calculated thermodynamic parameters for each monomer. Table C, M_n (Da) and [M]_res (mol L⁻¹) from low-conversion polymerization at different times; values of M_n are referred to the polyester block. Table D, M_n (Da) and α from non-isothermal ROP at different heating rates; values of M_n are referred to the polyester block.

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