Due to the large amount of material required for the network syntheses, three batches with similar molar masses were synthesized for the hydrophobic (3a-c) as well as for the hydrophilic component (5a-c). The deviations of the molar masses between the individual batches are small, indicating a very good reproducibility of the synthesis. In addition, all samples are characterized by narrow molar mass distributions, which is an essential prerequisite for the synthesis of model networks. Due to the very good agreement of the molecular parameters of the individual batches, in the following, no explicit reference to the respective batches used for further characterization and network synthesis will be made. , are not really consistent and were measured mainly at temperatures around 100 °C outside of our temperature window for synthesis and analysis. If this is not the case like in Ref. the data were computed from swelling measurements and thus, may contain a dependence on the model for elasticity and swelling.