Thermally rearranged (TR) polymers are polybenzoxazoles derived from a thermally-induced decarboxylation reaction of ortho-functional polyimides: These TR polymers have very high combinations of permeability and selectivity for a number of gas separations including CO2/CH4 and C2H4/C2H6.  To investigate the effect of conversion on transport properties, a series of TR polymer films were synthesized, characterized, and tested for H2, N2, O2, CH4, CO2, C2H4, C2H6, C3H6, and C3H8 permeability.  Increasing conversion increases permeability with minimal losses in selectivity.

Synthesis, characterization, and transport properties of thermally rearranged polyimides for gas separations

245th National Meeting (2013)

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