In addition, we introduce a polymer coupling procedure based on copper-catalyzed azide-alkyne cycloadditon (CuAAC) which allows for a direct comparison of pMeOx and PEG as hydrophilic blocks in pPheOzi-based triblock copolymers. Unexpectedly, rheological evaluation of the resulting polymers reveals superior performance of PEG hydrophilic blocks with respect to gelation kinetics and gel strength.