Methanol-Supplemented Hierarchical Porous Breath Figure Structure

Abstract

Honeycomb-shaped, hierarchical porous structure is fabricated using the breath figure method. Different solvents are used to fabricate porous membranes with five different concentrations using spin coating. The diameter of the pores is controlled by the polymer concentration as well as different solvents. Using methanol as an additive solvent a homogeneous porous film is achieved. Furthermore, the effect of different solvents on the titania nanoparticles on the breath figure porous structure shows how titania particles are confined in the polymer matrix. So, using methanol as an additional solvent would be far more practical for synthesizing homogeneous films with different pore sizes than the standard procedure for fabricating the breath figure structure.