Mixed matrix membranes comprising glassy polymers and dispersed mesoporous silica spheres for gas separation

▶ Mixed matrix membranes composed of polymer and mesoporous silica spheres are prepared. ▶ The filler induces changes in polyimide Matrimid® and polysulfone Udel® structure. ▶ Good dispersion of the filler without agglomeration in the polymer matrix. ▶ The permeability of the selective gas increases with filler loading. ▶ The gas selectivity has a maximum at 8 wt% filler loading.