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RISSynthesis of polyimide membrane for the separation of CO2/CH4 gases
Year: 2011
Abstract:
Separation of CO2/CH4 is one of the most important separations in oil and gas industries. Polyimide membranes are remarkable material for this purpose. Robson’s curve considers our claim about polyimide. One of the famous ...
Study of Effect of pressure and temperature on the gas separation properties of a novel copolyimide membrane with flexible moieties
Year: 2011
Abstract:
In this research a novel copolyimide was synthesized with aliphatic diamine, which composed of 3,3ʹ4,4ʹ-Benzophenonetetracarboxylic dianhydride (BTDA), 4,4ʹ-Oxydianyline (ODA) and 4,9-dioxa-1,12-dodecacanediamine monomers. ...
Synthesis, characterization and gas separation properties of novel copolyimide membranes based on flexible etheric–aliphatic moieties
Year: 2016
Abstract:
The structural properties and gas permeation of a group of copolyimide membranes were investigated. The copolyimides used in this study were prepared using 3,30,4,40-benzophenonetetracarboxylic dianhydride (BTDA) and ...