Fig. 2 SEC traces (RI in black, UV340nm in purple) of polymerisations of BLG–NCA (150 equiv.) in DMF initiated by (a) PyA HCl/TEA (1 : 1.1) at (top to bottom) 2 h, 6 h, 10 h, 24 h; (b) PyA HCl/TEA (1 : 1.5) at (top to bottom) 2 h, 6 h, 8 h, 24 h; the peak (*) is a high molar mass polystyrene (PS2M, 2 MDa) used as internal standard for calculating the monomer conversion (ESI†).
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