Preparation of the scaffolds-forming solution
The polyesters had been dissolved in chloroform. The concentrations were
adjusted (Table 1) so to obtain the viscosity of 350±50 cP. Polymers
were dissolved in an organic solvent for 24 h at room temperature while
stirring continuously with a magnetic stirrer. If pore precursors had
been used, they were added to the polymer solution after the complete
dissolution of the polyesters (minimum 24 h). PVP or PVP with the
addition of Pluronic® were added in such amounts to keep an appropriate
mass ratio to the polyester (Table 1). Next, the stirring was continued
for the next 24 h.
Table 1. Scaffolds-forming solutions