New poly(etherimide)s (PEI) containing isopropylidene groups were synthesized and investigated. They are strong and tough polymeric materials, showing excellent solubility in common organic solvents and high thermal stability. The highest gas permeability and CO2/N2 selectivity was demonstrated by PEI containing hexafluoroisopropylidene unit. The correlations between chemical structure and physical and gas permeation properties were found to exist.
- Aleksandra Wolinska-Grabczyk
- Ewa Schab-Balcerzak
- Piotr Kubica