Gas permeation studies with novel polymer-zeolite membranes

Süer, Murat Gökçe


Gas permeation and sorption properties of zif-8 filled polymeric membranes prepared by infrared and incandescent light induced liquid and vapor phase inversion
Antepli Tüzün, Burcu; Kalıpçılar, Halil; Yılmaz, Levent; Department of Chemical Engineering (2017)
The asymmetric PES membranes were produced by wet phase inversion method. Observations show that 10% loading of ZIF-8 with 65 nm crystal size into PES membranes, increasing solvent and non-solvent content of the IPA coagulation bath improved the permeance of PES membranes. The PI membranes were prepared by light induced dry-wet phase inversion method which is a new method and is not used in literature yet. The maximum permeance was observed when the IR exposure took less than 10 seconds. The permeance was a...
SUER, MG; BAC, N; Yılmaz, Levent (1994-05-20)
Mixed matrix membranes of polyethersulfone (PES), a glassy polymer, and hydrophilic zeolites 13X and 4A were prepared by using different membrane preparation procedures. Using selected procedure (c), the permeation rates of N2, O2, Ar, CO2 and H-2 were measured with a variety of membranes prepared at different zeolite loadings. Significant differences in measured permeability and calculated selectivity values demonstrated the importance of the type and percentage of zeolite. For both zeolitic additives, per...
Gas permeation properties of poly(arylene ether ketone) and its mixed matrix membranes with polypyrrole
Mergen, Görkem; Toppare, Levent Kamil; Yılmaz, Levent; Department of Polymer Science and Technology (2003)
For the last two decades, the possibility of using synthetic membranes for industrial gas separations has attracted considerable interest since membrane separation technologies have the advantages of energy efficiency, simplicity and low cost. However, for wider commercial utilization there is still a need to develop membranes with higher permeant fluxes and higher transport selectivities. Conductive polymers, due to their high gas transport selectivities, give rise to a new class of polymeric materials for...
Gas sensing property of a conducting copolymer
Ak, Metin; Yigitsoy, Basak; Yagci, Yusuf; Toppare, Levent Kamil (Walter de Gruyter GmbH, 2007-05-02)
A bifunctional amido thiophene, namely hexamethylene (bis-3-thiophene acetamide) (HMTA) was synthesized and its copolymer with pyrrole was electrochemically prepared in water/ PTSA solvent/ electrolyte medium. Sensory behavior of this copolymer against ammonia, methanol, dichloromethane (DCM) and n-hexane vapors was investigated. The methanol vapor, which can form hydrogen bonds with the polar groups on the copolymer surface, showed the maximum response. DCM, which is less polar, yielded relatively lower re...
Gas separation with membranes
Akkor, Günin; Baç, Nurcan; Department of Chemical Engineering (1988)
Citation Formats
M. G. Süer, “Gas permeation studies with novel polymer-zeolite membranes,” Middle East Technical University, 1993.