Fig. 5. Degradation of TBPE-5. Reaction conditions: 2 wt% polymer in toluene, 6 mM p-TSA·H2O, T = 60 °C. (A) Mnt/Mn0 (%) determined by SEC of aliquots taken at time points (t) and expressed relative to Mn at t = 0 h. (B) End-group analysis showing formation of PDL end chains at t = 4 h. (C) Corresponding SEC traces at selected time points only for clarity (THF eluent, RI detector vs. PS standards).
