Self-assembly driven thermogelation is well known to be influenced by polymer composition and architecture. To assess how variations of copolymer architecture and hydrophilic blocks influence the cooling-induced thermogelation of pPheOzi-based systems, we incubated 20 wt.-% concentrated aqueous solutions of the synthesized copolymers in the fridge for a minimum of 24 hours. Surprisingly, tube-inversion test revealed formation of self-supporting hydrogels for all polymers under investigation (Fig. ). Gentle heating, in turn, led to liquefaction of the formed gels. Of note, the diblock P_D and star-like copolymer P_S yield markedly more turbid gels compared to the triblock P_T and gradient P_G. In case of the pMeOx-b-pPheOzi-b-pMeOx triblock copolymer, weak hydrogels based on a worm network are already formed at low polymer concentrations of 5 wt.-%. However, reducing the polymer concentration to 5 wt.-% prevented the gradient and star-like copolymer variants P_G and P_S from forming self-supporting hydrogels upon cooling, although the viscosity visibly increased. Further experiments addressing the macroscopic gel properties were therefore performed with 20 wt.-% concentrated aqueous polymer solutions to ensure stable hydrogel formation for all polymers. Of note, the preparation and handling of the samples in the liquid state is straightforward at room temperature due to the long gelation times (Sup. Fig. ).