Theoretical estimates for the interaction parameter can be made using the Hildebrand-Scott solubility parameter, the Hansen method for the solubility parameters, or the Tian-Munk model, whereby the latter is the most general approach, allowing also for negative interaction parameters as measured for chloroform. In the SI Chapter 10, we have compiled the original data regarding the corresponding solubility parameters and we provide a brief description how the interaction parameters were computed. The results of these computations are summarized in Table . for Mn = 10 kg mol -1 c) based on viscosity data d) computed in this work using the Hildebrand-Scott approach, (𝜒 𝐻𝑆 ), the Tian-Munk model, (𝜒 𝑇𝑀 ), or the Hansen approach for 𝛼 = 0.6 (𝜒 𝛼=6 ) as described in the SI.