Fig. 1.

(A) Schematic demonstration of the fabrication of crosslinked 3-D porous PPF-co-PLLA scaffolds using a phase separation method. (B) Detailed steps during the fabrication process: (1) weigh specific amount of PPF-co-PLLA and BAPO; (2) add solvents (dioxane/water); (3) dissolve copolymer at high temperature; (4) cool at room temperature until cloud point which indicates start of phase separation; (5) place immediately under UV irradiation for photocrosslinking; (6) freeze at − 80 °C; (7) dry by lyophilization. (C) The cloud point and gelation temperature for systems containing 3, 5, and 9 % of PPF-co-PLLA polymer.