Enhancement of the gas separation properties of polybenzimidazole (PBI) membrane by incorporation of silica nano particles

By M. Sadeghi, M. A. Semsarzadeh, Homayoon Moadel. 2009

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Polybenzimidazole (PBI)/zeolitic imidazolate frameworks (ZIF-8) mixed matrix membranes for pervaporation dehydration of alcohols (2012, background): “To enhance permeability and mechanical toughness, various chemical modifications, such as n-substitution [12], blending with another polymer [10], incorporating inorganic materials such as silica particles [13] and zeolitic imidazolate frameworks [14] have been proposed.”
How the shape of fillers affects the barrier properties of polymer/non-porous particles nanocomposites: A review (2018, methodology): “the motion of molecular penetrant and the creation of a more tortuous path caused by the presence of the particles [72,73].”
High performance ZIF-8/PBI nano-composite membranes for high temperature hydrogen separation consisting of carbon monoxide and water vapor (2013, unknown): “Several approaches have been taken to overcome the these bottlenecks such as polymer blending [29], replacing PBI acid moiety [30], chemical cross-linking [31], thermally rearranging of precursor polymer [32], N-substitution modification [33], and incorporating with inorganic particles [34,35].”