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Natural gas permeation in polyimide membranes

โœ Scribed by John D Wind; Donald R Paul; William J Koros


Publisher
Elsevier Science
Year
2004
Tongue
English
Weight
203 KB
Volume
228
Category
Article
ISSN
0376-7388

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## Abstract Asymmetric 2,2โ€bisโ€(3,4โ€dicarboxyphenyl) hexafluoropropane dianhydride (6FDA)โ€2โ€methylโ€1,3โ€phenylenediamine (mPDA) polyimide membranes were prepared according to a phaseโ€inversion mechanism by using different solvent/nonsolvent blends. The membrane formation mechanism and the final perf

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The phase state of polysulfone/polyimide (PSF/PI) blends has been studied by differential scanning calorimetry, rheology, and X-ray scattering. The blends rich in PSF form miscible blends when prepared by solution casting from a common solvent. In these PSF-rich blends, the single dynamic process in