Abstract
Sorption equilibria and permeation rates for CO 2, O 2 and N 2 in poly(ether imide) (PEI) membrane which has a glass-transition temeperature of 216°C and in poly(ether ether ketone) (PEEK) (a typical crystalline polymer, crystallinity=0.4) membrane, whose glass-transition temperature is 143°C, were measured at 25, 30 and 40°C and at pressures up to 3 MPa. The pressure dependence of the mean permeability coefficients of PEEK membrane to O 2 and CO 2 obeyed conventional dual-mode mobility model, whereas that of PEI membrane to CO 2 did not follow the conventional dual-mode mobility model. A modified dual-mode mobility model which takes into account four kinds of diffusive movements was satisfactorily used to simulate the pressure dependence.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
