A variety of phosphazene polymers were synthesized using different pendant groups. This included various composition of methoxyethoxyethoxy/cyclohenoxy (MEE/CH), 2-methoxyethan-1-amino/cyclohexyl-amino (MEEA/CHA) and 2-methoxyethanoxy/cyclohexyl-amino (ME/CHA) were synthesized. The chemical and thermal properties of these polymers were analyzed using several techniques such as Gel Permeation Chromatography (GPC), Thermal Gravimetric Analysis (TGA), Differential Scanning Calorimetry (DSC) and Nuclear Magnetic Resonance (NMR). Primary structure-property relationships were developed for these materials for CO2 permeability and CO2/N2 selectivity. A Variety of membrane casting and post-crosslinking methodologies were also developed.

Polyphosphazene based membranes for gas separations

253rd National Meeting (2017)

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