Having studied the two cases at the extremes of the degradation spectrum, the characterization of the different levels of partial polymer degradation was then carried out. These are, in fact, the most representative cases of what can be obtained in the case of catalytic degradation of PBPAC, particularly in the case of biodegradation, which is generally very limited. As such, the main question we sought to answer here was to determine the sensitivity and limit of quantification of each analytical method, in order to best define which one is most suitable at each catalyst/depolymerization stage. For this, the kinetic monitoring of depolymerization was performed, by adjusting the concentration of methanol and polymer in the reaction medium, to obtain a measurable progression of degradation over several hours. As before, we began by characterizing the degradation products by SEC. The resulting chromatograms obtained in these conditions at t = 0, 2, 5, 15, 30 and 120 min are shown in Figure and the description of the molecular weight distribution of the associated depolymerization products are presented in Table .