NIPS is a non-equilibrium liquid-liquid phase separation phenomenon used to make polymer membranes through solvent-nonsolvent exchange. Newly developed phase-field simulations allow investigation of coupled mass transfer, flow and thermodynamic instability during processing and the corresponding microstructures that result from variations in film composition and thickness.
These simulation tools provide critical insight into the nonequilibrium processing of complex fluids to make architectured, resilient solids and soft materials.