Preparation of porous poly(L-lactic acid)-co -(trimethylene-carbonate) structures using supercritical CO₂ as antisolvent and as foaming agent

In this work, porous structures of poly(l-lactic acid)-co-(tri-methylene-carbonate) (PLLA-co-TMC) were successfully fabricated using two experimental methods, that is, using supercritical CO2 as antisolvent and as foaming agent through the pressure induced phase separation technique. Considering the phase inversion method, the effect of the initial polymer concentration of the solution, pressure, and temperature on the morphology of the final...