Gas-separation behavior of poly(ether sulfone)-poly(ethylene glycol) blend membranes

2018 ◽  
Vol 135 (44) ◽  
pp. 46845 ◽  
Author(s):  
Iman Akbarian ◽  
Afsaneh Fakhar ◽  
Elham Ameri ◽  
Morteza Sadeghi
Keyword(s):  
Ethylene Glycol ◽  
Gas Separation ◽  
Poly Ethylene Glycol ◽  
Blend Membranes ◽  
Poly Ethylene ◽  
Separation Behavior

Gas separation characteristics of new membrane materials based on poly(ethylene glycol)-crosslinked polymers and ionic liquids

2012 ◽  
Vol 52 (7) ◽  
pp. 494-498 ◽  
Author(s):  
E. M. Erdni-Goryaev ◽  
A. Yu. Alent’ev ◽  
N. A. Belov ◽  
D. O. Ponkratov ◽  
A. S. Shaplov ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Ethylene Glycol ◽  
Gas Separation ◽  
Poly Ethylene Glycol ◽  
Crosslinked Polymers ◽  
Membrane Materials ◽  
Poly Ethylene

scholarly journals Poly(ethylene glycol) Diacrylate Iongel Membranes Reinforced with Nanoclays for CO2 Separation

Membranes ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 998
Author(s):  
Ana R. Nabais ◽  
Rute O. Francisco ◽  
Vítor D. Alves ◽  
Luísa A. Neves ◽  
Liliana C. Tomé
Keyword(s):  
Ethylene Glycol ◽  
Gas Separation ◽  
Mechanical Stability ◽  
Chemical Properties ◽  
Ideal Gas ◽  
Gas Permeation ◽  
Poly Ethylene Glycol ◽  
One Pot ◽  
Glycol Diacrylate ◽  
Poly Ethylene

Despite the fact that iongels are very attractive materials for gas separation membranes, they often show mechanical stability issues mainly due to the high ionic liquid (IL) content (≥60 wt%) needed to achieve high gas separation performances. This work investigates a strategy to improve the mechanical properties of iongel membranes, which consists in the incorporation of montmorillonite (MMT) nanoclay, from 0.2 to 7.5 wt%, into a cross-linked poly(ethylene glycol) diacrylate (PEGDA) network containing 60 wt% of the IL 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([C2mim][TFSI]). The iongels were prepared by a simple one-pot method using ultraviolet (UV) initiated polymerization of poly(ethylene glycol) diacrylate (PEGDA) and characterized by several techniques to assess their physico-chemical properties. The thermal stability of the iongels was influenced by the addition of higher MMT contents (>5 wt%). It was possible to improve both puncture strength and elongation at break with MMT contents up to 1 wt%. Furthermore, the highest ideal gas selectivities were achieved for iongels containing 0.5 wt% MMT, while the highest CO2 permeability was observed at 7.5 wt% MMT content, due to an increase in diffusivity. Remarkably, this strategy allowed for the preparation and gas permeation of self-standing iongel containing 80 wt% IL, which had not been possible up until now.

Gas separation properties of poly(ethylene glycol)/poly(tetramethylene glycol) based polyurethane membranes

2012 ◽  
Vol 415-416 ◽  
pp. 469-477 ◽  
Author(s):  
Mohammad Mehdi Talakesh ◽  
Morteza Sadeghi ◽  
Mahdi Pourafshari Chenar ◽  
Afsaneh Khosravi
Keyword(s):  
Ethylene Glycol ◽  
Gas Separation ◽  
Poly Ethylene Glycol ◽  
Polyurethane Membranes ◽  
Poly Ethylene
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