Effects of Thermal Treatment and Physical Aging on the Gas Transport Properties in Matrimid®L. Ansaloni, M. Minelli, M. Giacinti Baschetti and G.C. SartiOil Gas Sci. Technol. – Rev. IFP Energies nouvelles, 70 2 (2015) 367-379DOI: https://doi.org/10.2516/ogst/2013188