Porous electrospun polycaprolactone (PCL) fibres by phase separation

- Electrospun porous fibres are produced in a single step using binary solvents.
- A ternary graph shows the mixture compositions required to produce porous fibres.
- The boiling point/evaporation rate of the good solvent determines the pore formation.
- An empirical equation correlating the fibre diameter to the solution properties was developed.