For quantitative analysis and the extraction of the microstructural descriptors, the SAXS part of the scattering data (i.e. for 0.1 nm -1 < q < 3 nm -1 ) was fitted with a unified model by Beaucage et al. (ESI: Supplementary Note 2, eq. S3). A complete description of the model can be found in the ESI (ESI: Supplementary Note 2, Figure ). From the SAXS fits, significant parameters are used for a system which assumes two distinct structural levels (smaller level denoted as sub), and thereby we obtained B, G, Gsub, Bsub, Rg and Rsub as a function of time (ESI: Figure ). In a nutshell, B and G values are Porod and Guinier prefactors, accordingly, while R values are radii of gyration. These variables parameterize the scattering profile throughout the considered q region. While Rg and Rsub are effectively limited by the measured q-range, the other parameters exhibit approximately different ranges e.g. G ≈ n100 cm -1 , G > Gsub > n10 -6 cm -1 (with n = 1, 2, 3 …), B and Bsub are mostly below 1. The p and psub parameters show values between 4 and 2, dependent on the interface of the scatterers (p = 4 for sharp, smooth Porod interfaces).