Chemistry Letters · 1996 · 16 citations · 5 references
EngineeringChemical EngineeringMaterials SciencePolymer ChemistryPolymer EngineeringSeparation ProcessesMembrane EngineeringMembrane MaterialsMembrane PermeabilityMembrane SeparationPolymer MembranesPolymeric MembranesCarbon DioxideCarbon Dioxide Selective MembranesCarbon Dioxide Separation MembranesGas Permeable MembranesRelative Humidity EffectsSelective PermeationSeparation FactorWater Vapor Effects
Abstract Amine-modified polyimide membranes were prepared by immersing methyl-brominated polyimide membranes into aqueous amine solutions. They displayed high performance for CO2/N2 separation especially in the presence of water vapor; for example, permeability to CO2 of 36 Barrer and separation factor of 81 at 2 atm, 298 K and relative humidity of 75%.
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Kazuhiro Tanaka, Masaaki Okano, Hiroyuki Toshino et al. · Journal of Polymer Science Part B Polymer Physics · 1992 · 253 citations
Gas permeation properties of poly(ether imide) segmented copolymers
Ken‐ichi Okamoto, Masafumi Fuji, Shuusaku Okamyo et al. · Macromolecules · 1995 · 198 citations