Abstract
Polyether based thin film composite (TFC) membranes were developed by interfacial polymerization (IP) on polysuylfone (PSf) ultra-filtration membrane with poly (dimethylsiloxane) (PDMS) inter-layer. Polyetheramine (PEA) and Trimesoyl Chloride (TMC) were selected as aqueous monomer and organic monomer, respectively. The thickness of the PDMS inter-layer was 550nm, while IP separation layer was only 100nm. The effects of the PDMS inter-layer and the PEA molecular weight on the TFC membrane performance were investigated. The gas permeation results show that the TFC membrane with PDMS inter-layer exhibits higher CO2/N2 selectivity compared to the membranes without PDMS inter-layer. PDMS inter-layer is able to eliminate the defects on the support membrane and diminish the TMC hydrolysis as well. Among the membranes prepared with three different molecular weight PEAs (ED-600, ED-900 and ED-2003), the membrane of ED-900 exhibits the best performance with an impressive CO2 permeance of 360 GPU and CO2/N2 selectivity of 67.2 for a mixture CO2/N2 (20/80 by volume), while for a mixture of CO2/CH4 (10/90 by volume) it demonstrates CO2 permeance of 275 GPU and CO2/CH4 selectivity of 31.6.
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.
