Considering all the results obtained for the four polymers with triethyl citrate and ethylene glycol as plasticizers, minor differences between the plasticizers were observed in the temperature dependent viscosity and T g values, but the overall printability of the samples containing triethyl citrate was better, due to improved fiber stacking. The exception was A-BuOx-A, for which phase separation between triethyl citrate and the polymer was observed during the printing process. However, preliminary printing tests for the ternary blend of A-BuOx-A, triethyl citrate and the model drug IND did not show phase. Therefore, it was decided to continue the study with triethyl citrate.