Fluorinated copolyimide membranes for sour mixed‐gas upgrading

ABSTRACT Three random and two block 4,4′‐(hexafluoroisopropylidene)diphthalic anhydride (6FDA)‐based copolyimides with different 6FpDA:Durene molar ratio varying from 25 to 80% were prepared and characterized. The pure‐gas permeation data of their membranes were investigated at 100 psi and 22 °C. Th...

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Veröffentlicht in:	Journal of applied polymer science 2020-02, Vol.137 (5), p.n/a
Hauptverfasser:	Hayek, Ali, Yahaya, Garba O., Alsamah, Abdulkarim, Panda, Saroj K.
Format:	Artikel
Sprache:	eng
Schlagworte:	6FDA‐Durene/6FpDA Carbon dioxide Cellulose acetate Copolymers Durene fluorinated copolyimide Fluorination Gas mixtures Gas permeation Gas separation Gas transport Hydrogen sulfide Materials science Membranes Methane Penetration Permeability permeability coefficient Polymers Pressure effects Selectivity selectivity coefficient Sour gas sour mixed‐gas Transport properties
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