Abstract
New cardo poly(aryl ether ketone)s containing side phthalide groups and aryl ether ketones in different lengths have been synthesized and characterized in terms of their thermal, volumetric and gas transport properties to H 2, O 2, N 2, CH 4 and CO 2. The polymers show high glass transition temperature (218–420 °C), good solubility in chlorinated solvents and strong acids as well as excellent thermal stability (decomposition temperatures above 510 °C). The most permeable membrane studied shows permeability coefficients of 11 to O 2 and 72 to CO 2, with ideal selectivity factors of 4.6 for the pair O 2/N 2 and 25 for CO 2/CH 4. The results, interpreted in terms of chain rigidity and chain packing ability, show that decreasing the length of the connector moieties between the cardo groups increases the fractional free volume, the glass transition temperature and the gas permeability coefficients.
Sign-in/Register to access full text options 
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.
