An investigation of blended polymeric membranes and their gas separation performance

Farnam, Marjan; Mukhtar, Hilmi; Shariff, Azmi Mohd

doi:10.1039/c6ra21574b

Cited by 30 publications

(28 citation statements)

References 71 publications

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“…For pure PVAc membrane, the carbonyl group appeared at 1,745 cm −1 . The peak at 1,010 cm −1 was associated with C–O–C skeletal bond . In PEI/PVAc (97/3) blend membrane, all the characteristics peaks of PEI and PVAc were observed.…”

Section: Resultsmentioning

confidence: 91%

Fabrication and characterization of polyetherimide/polyvinyl acetate polymer blend membranes for CO₂/CH₄ separation

Mannan

Yih

Nasir

et al. 2018

Polymer Engineering & Sci

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This article presents fabrication, characterization, and performance evaluation of polyetherimide (PEI)/polyvinyl acetate (PVAc) blend membranes. Polymer blend membranes with various blend ratios of PEI/PVAc were prepared by solution casting and evaporation technique. Morphology and miscibility of polymer blend membranes were characterized by field emission scanning electron microscope (FESEM) and differential scanning calorimetry (DSC), respectively. The interaction between blend polymers was analyzed by FTIR analysis. Gas separation performance was evaluated in terms of permeability and selectivity. FESEM results revealed that pure polymer and blend membranes were homogeneous and dense in structure. A single glass transition temperature of polymer blend membranes was found in DSC analysis which indicated the miscibility of PEI/PVAc blend. FTIR analysis confirmed the presence of molecular interaction between blend polymers. The permeation results showed that the presence of PVAc (3 wt%) in blend membranes has improved CO2 permeability up to 95% compared to pure PEI membrane. In addition, CO2/CH4 selectivity was found to be 40% higher than pure PEI membrane. This study shows that blending a small fraction of PVAc can improve the gas separation performance of PEI/PVAc blend membranes. POLYM. ENG. SCI., 59:E293–E301, 2019. © 2018 Society of Plastics Engineers

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Section: Resultsmentioning

confidence: 91%

Fabrication and characterization of polyetherimide/polyvinyl acetate polymer blend membranes for CO₂/CH₄ separation

Mannan

Yih

Nasir

et al. 2018

Polymer Engineering & Sci

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“…The absence of pores on the surface of the membranes confirmed the dense structure of the blend membranes. This was notable because the presence of voids in the membrane structure was undesirable; gas‐separation membranes with dense structures are always preferable …”

Section: Resultsmentioning

confidence: 99%

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

Akbarian

Fakhar

Ameri

et al. 2018

J of Applied Polymer Sci

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Poly(ether sulfone) (PES), because of its low chain mobility and high gas selectivity, was selected as a gas-separation membrane. Because poly(ethylene glycol) (PEG) contains polar ether groups favorable for carbon dioxide (CO 2 ) capture, we investigated the effects of PEG on the CO 2 /CH 4 and CO 2 /N 2 separation properties of PES-PEG blend membranes. PEG with different molecular weights (4000, 6000, and 10,000) and concentrations of up 30 wt % was added to PES. Scanning electron microscopy and wide-angle X-ray diffraction analyses on the blends confirmed the uniformity and dense surfaces of the membranes and no changes in the crystallinity, respectively. Fourier transform infrared spectra indicated good interactions between the PEG and PES segments. Gas permeation tests showed that with increasing PEG molecular weight, its weight fraction permeability of CH 4 and CO 2 increased, whereas the permeability of O 2 and N 2 decreased. The best composition of PES-PEG was a 70/30 ratio; with this composition, the selectivities of CO 2 /N 2 and CO 2 /CH 4 were enhanced by 64 and 14%, respectively, compared to that of the pure membrane.

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“…The most important parameters to consider when choosing the membrane materials are as follows 53: Inherent highly permeable and selective materials are desirable for gas separation membranes since they decrease the membrane capital cost and required area. This is why high permeability and high selectivity simultaneously are the aim of many membrane researchers 54. High chemical stability: due to the existence of different aromatics such as benzene, toluene, ethylbenzene, and xylenes in natural gas 55, 56, the membrane material is prone to be dissolved and degraded easily which means the lifespan of the membrane will be reduced. Thus, high chemical resistance of membrane material is an advantage to prolong its usage as well as extend its application to other industries. High mechanical stability is another selection scale for membrane material.…”

Section: Membrane Categorizationmentioning

confidence: 99%

“…Inherent highly permeable and selective materials are desirable for gas separation membranes since they decrease the membrane capital cost and required area. This is why high permeability and high selectivity simultaneously are the aim of many membrane researchers 54.…”

Section: Membrane Categorizationmentioning

confidence: 99%

A Review on Glassy and Rubbery Polymeric Membranes for Natural Gas Purification

Farnam¹,

Mukhtar

Shariff

2021

ChemBioEng Reviews

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A comprehensive overview of membrane technology used for natural gas purification and other gas separation applications including methods, materials, and results described in previous studies is presented. Different membrane categories are elaborated thoroughly followed by comparisons made between glassy and rubbery polymeric membranes. Various approaches to improve membrane separation performance, such as incorporation of inorganic fillers and blending technique, are discussed. Gas separation in different membranes, e.g., glassy/rubbery polymer blend membranes, mixed matrix membranes, and polymeric blend mixed matrix membranes, are considered. Adopted techniques by researchers to solve existing issues in membrane fabrication and performance are explained in detail.

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An investigation of blended polymeric membranes and their gas separation performance

Abstract: Novel blend glassy/rubbery polymeric membranes were produced, and, by adding 20% PVAc to PES, good selectivity results were obtained.

Cited by 30 publications

References 71 publications

Fabrication and characterization of polyetherimide/polyvinyl acetate polymer blend membranes for CO₂/CH₄ separation

Fabrication and characterization of polyetherimide/polyvinyl acetate polymer blend membranes for CO₂/CH₄ separation

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

A Review on Glassy and Rubbery Polymeric Membranes for Natural Gas Purification

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An investigation of blended polymeric membranes and their gas separation performance

Abstract: Novel blend glassy/rubbery polymeric membranes were produced, and, by adding 20% PVAc to PES, good selectivity results were obtained.

Cited by 30 publications

References 71 publications

Fabrication and characterization of polyetherimide/polyvinyl acetate polymer blend membranes for CO2/CH4 separation

Fabrication and characterization of polyetherimide/polyvinyl acetate polymer blend membranes for CO2/CH4 separation

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

A Review on Glassy and Rubbery Polymeric Membranes for Natural Gas Purification

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Product

Resources

About

Fabrication and characterization of polyetherimide/polyvinyl acetate polymer blend membranes for CO₂/CH₄ separation

Fabrication and characterization of polyetherimide/polyvinyl acetate polymer blend membranes for CO₂/CH₄ separation