Advances in high carbon dioxide separation performance of poly (ethylene oxide)-based membranes

Bandehali, Samaneh; Moghadassi, Abdolreza; Parvizian, Fahime; Hosseini, S.M.; Matsuura, Takeshi; Joudaki, E.

doi:10.1016/j.jechem.2019.10.019

Cited by 73 publications

(42 citation statements)

References 167 publications

(145 reference statements)

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“…However, they are highly diffusive to all kinds of gases; thus, they do not exhibit selective diffusivity (so-called “diffusivity-selectivity”), a property governed by kinetic diameter. Instead, they exhibit solubility-selectivity, which is typically governed by gas condensability [ 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

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PEG/PPG-PDMS-Adamantane-Based Crosslinked Terpolymer Using the ROMP Technique to Prepare a Highly Permeable and CO2-Selective Polymer Membrane

et al. 2020

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In this study, precursor molecules based on PEG/PPG and polydimethylsiloxane (PDMS), both widely used rubbery polymers, were copolymerized with bulky adamantane into copolymer membranes. Ring-opening metathesis polymerization (ROMP) was employed during the polymerization process to create a structure with both ends crosslinked. The precursor molecules and corresponding polymer membranes were characterized using various analytical methods. The polymer membranes were fabricated using different compositions of PDMS and adamantane, to determine how the network structure affected their gas separation performance. PEG/PPG, in which CO2 is highly soluble, was copolymerized with PDMS, which has high permeability, and adamantane, which controlled the crosslinking density with a rigid and bulky structure. It was confirmed that the resulting crosslinked polymer membranes exhibited high solubility and diffusivity for CO2. Further, their crosslinked structure using ROMP technique made it possible to form good films. The membranes fabricated in the present study exhibited excellent performance, i.e., CO2 permeability of up to 514.5 Barrer and CO2/N2 selectivity of 50.9.

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Section: Introductionmentioning

confidence: 99%

“…However, PEG is also intrinsically crystalline, and the higher its molecular weight, the larger its loss of permeability. This makes it less likely for this rubbery polymer to achieve high performance as a gas separation membrane [ 6 , 7 , 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

PEG/PPG-PDMS-Adamantane-Based Crosslinked Terpolymer Using the ROMP Technique to Prepare a Highly Permeable and CO2-Selective Polymer Membrane

et al. 2020

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“…Poly(ethylene oxide-b-amide) with the trade name Pebax has been manufactured by changing the ether and amide composition [29]. Furthermore, the surface modification of nanofillers avoids their accumulation in the polymer matrix, and merging of these particles improves the performance of the resulting membranes [29].…”

Section: Introductionmentioning

confidence: 99%

“…SNPs have hydroxyl groups on their surface and therefore a strong tendency to accumulate and form interfacial microvoids. As a result, the reduction of this functional group can improve the dispersion and interaction between the filler surface and the polymer matrix [6,29]. For this reason, the surface of the SNPs fillers was modified by functionalization with carboxylic groups.…”

Section: Introductionmentioning

confidence: 99%

“…Poly(ethylene oxide‐ b ‐amide) with the trade name Pebax has been manufactured by changing the ether and amide composition . Furthermore, the surface modification of nanofillers avoids their accumulation in the polymer matrix, and merging of these particles improves the performance of the resulting membranes . In the functionalization of the filler, the surface of the filler particles was modified by incorporating functional groups like imidazole , amine , 20–24, , carboxyl , , , , and hydroxyl to avoid the accumulation of fillers, which improved the gas separation performance of the MMMs.…”

Section: Introductionmentioning

confidence: 99%

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CH₄‐Selective Mixed‐Matrix Membranes Containing Functionalized Silica for Natural Gas Purification

et al. 2020

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Mixed-matrix membranes were prepared by incorporating functionalized silica nanoparticles (SNPs) into the poly(ether-block-amide). The gas permeation properties of membranes were investigated for the separation of N 2 and CO 2 from CH 4. Results revealed that chemical modification of SNPs and incorporation of the carboxylic groups on its surface had a strong interaction with the polymer matrix and improved the distribution of the nanofiller in the membrane matrix. According to the gas permeation experiments at various SNPs loadings and feed pressures, different trends were observed for the permeability and selectivity. Incorporation of the modified-SNPs nanofiller into the membrane enhanced the CH 4 permeability, as well as the CH 4 /N 2 and CO 2 /N 2 selectivities.

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Ultrapermeable Gel Membranes Enabling Superior Carbon Capture

Zhu,

Yang,

Guo

et al. 2023

Angewandte Chemie

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Membrane technology is rapidly gaining broad attraction as a viable alternative for carbon capture to mitigate increasingly severe global warming. Emerging CO2‐philic membranes have become crucial players in efficiently separating CO2 from light gases, leveraging their exceptional solubility‐selectivity characteristics. However, economic and widespread deployment is greatly dependent on the boosted performance of advanced membrane materials for carbon capture. Here, we design a unique gel membrane composed of CO2‐philic molecules for accelerating CO2 transportation over other gases for ultrapermeable carbon capture. The molecular design of such soft membranes amalgamates the advantageous traits of augmented permeation akin to liquid membranes and operational stability akin to solid membranes, effectively altering the membrane's free volume characteristics validated by both experiments and molecular dynamics simulation. Surprisingly, gas diffusion through the free‐volume‐tuned gel membrane undergoes a 9‐fold improvement without compromising the separation factor for the superior solubility selectivity of CO2‐philic materials, and CO2 permeability achieves a groundbreaking record of 5608 Barrer surpassing the capabilities of nonfacilitated CO2 separation materials and exceeding the upper bound line established in 2019 even by leading‐edge porous polymer materials. Our designed gel membrane can maintain exceptional separation performance during prolonged operation, enabling the unparalleled potential of solubility‐selective next‐generation materials towards sustainable carbon capture.

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Advances in high carbon dioxide separation performance of poly (ethylene oxide)-based membranes

Cited by 73 publications

References 167 publications

PEG/PPG-PDMS-Adamantane-Based Crosslinked Terpolymer Using the ROMP Technique to Prepare a Highly Permeable and CO2-Selective Polymer Membrane

PEG/PPG-PDMS-Adamantane-Based Crosslinked Terpolymer Using the ROMP Technique to Prepare a Highly Permeable and CO2-Selective Polymer Membrane

CH₄‐Selective Mixed‐Matrix Membranes Containing Functionalized Silica for Natural Gas Purification

Ultrapermeable Gel Membranes Enabling Superior Carbon Capture

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Advances in high carbon dioxide separation performance of poly (ethylene oxide)-based membranes

Cited by 73 publications

References 167 publications

PEG/PPG-PDMS-Adamantane-Based Crosslinked Terpolymer Using the ROMP Technique to Prepare a Highly Permeable and CO2-Selective Polymer Membrane

PEG/PPG-PDMS-Adamantane-Based Crosslinked Terpolymer Using the ROMP Technique to Prepare a Highly Permeable and CO2-Selective Polymer Membrane

CH4‐Selective Mixed‐Matrix Membranes Containing Functionalized Silica for Natural Gas Purification

Ultrapermeable Gel Membranes Enabling Superior Carbon Capture

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CH₄‐Selective Mixed‐Matrix Membranes Containing Functionalized Silica for Natural Gas Purification