Study on polyimide/TiO2 nanocomposite membranes for gas separation

Plasticization and Swelling in Polymeric Membranes in CO2 Removal from Natural Gas

“…Almost for more than two decades polyimides gained importance as membrane material to be used in gas separation and vapor separation. They can be applied under aggressive feed conditions because of their higher thermal, chemical, and mechanical stability and are supposed to have excellent gas separation properties [43][44][45].…”

Investigation of Oxygen Permeation through Composites of PMMA and Surface‐Modified ZnO Nanoparticles

“…[3][4][5][6][7][8][9] On the other hand, nanocomposite gas separation membranes have been described in which the nanoparticles seemed to enhance the gas transport properties of the film relative to the corresponding pure matrix material. [2,[10][11][12][13][14][15] Such contradictory results show that a simple and generalizing explanation for the influence of nanoparticles on the permeability of composite materials cannot be given. Maxwells model is often used to describe the permeability in films containing roughly spherical impermeable particles.…”

Synthesis and properties of silica–polyimide hybrid films derived from colloidal silica particles and polyamic acid

“…4,5 In particular, the polyimide hybrid materials with dimension in the nanometer size have been largely focused on, because they exhibited better thermal, mechanical, gas separation, and dielectric properties. For example, many polyimide-based nanocomposites, including TiO 2 /PI, 6,7 silica/PI, 5,[8][9][10] ZnO/PI, 11 Al 2 O 3 /PI, 12 BaTiO 3 /PI, 13 and polyhedral oligomeric silsesquioxanes/PI, [14][15][16] have been prepared. At present, the most studies are focused on the silica/polyimide hybrids.…”