Modern Trends and Applications of Gas Transport Through Various Polymers

Abhisha, Vakkoottil Sivadasan; Swapna, Valiya Parambath; Stephen, Ranimol

doi:10.1016/b978-0-12-809884-4.00018-5

Cited by 6 publications

(5 citation statements)

References 114 publications

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“…For the first time in membrane science, this novel study represents the relation of surface roughness of nonporous polymeric membranes with their gas separation and mechanical properties in terms of surface free energy. The most widely used polymeric membranes are made based on commercially available polyimide, polyurethane, , cellulose acetate or triacetate, , polyamide, Pebax 1657, , poly(vinyl alcohol), polysulfone, poly(vinylidene fluoride), polyacetylene, and several other polymers . From this variety of polymers, three ones differing in chain rigidity were selected, namely, polysulfone (PSU), cellulose triacetate (CTA), and poly(vinyl alcohol) (PVA).…”

Section: Introductionmentioning

confidence: 99%

“…The most widely used polymeric membranes are made based on commercially available polyimide, 31 polyurethane, 32,33 cellulose acetate or triacetate, 34,35 polyamide, 36 Pebax 1657, 34,37 poly(vinyl alcohol), 33 polysulfone, 38 poly(vinylidene fluoride), 39 polyacetylene, 40 and several other polymers. 41 From this variety of polymers, three ones differing in chain rigidity were selected, namely, polysulfone (PSU), cellulose triacetate (CTA), and poly(vinyl alcohol) (PVA). The possibility of controlling surface characteristics for the polymeric membranes using glass substrates of various roughness is shown.…”

Section: ■ Introductionmentioning

confidence: 99%

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Revealing the Surface Effect on Gas Transport and Mechanical Properties in Nonporous Polymeric Membranes in Terms of Surface Free Energy

et al. 2020

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The contribution of surface roughness of nonporous polymeric membranes to their gas separation and mechanical properties was studied in terms of surface free energy. The membranes samples were prepared based on glassy polymers with different chain rigidity, namely polysulfone (PSU), cellulose triacetate (CTA), and poly(vinyl alcohol) (PVA). The results were obtained by atomic force and scanning electron microscopy (AFM and SEM) with individual gas permeation, wettability, and mechanical testing. The specific surface free energy (as well as its polar and dispersive components) for the polymers was calculated by the Owens−Wendt method. It was proven that the surface roughness of the polymer membranes affects both energy components; however, the degree of this influence depends on the chemical nature of the corresponding polymer. Moreover, it was assumed that the dispersive energy component is inversely correlated with any gases' total permeability. In contrast, the polar one is inversely correlated with the permeability by gases with the ability for site-specific interactions. The gas separation results confirmed this assumption. It was also shown that the mechanical properties of the polymer membranes are also influenced by the surface energy, namely, its dispersive component.

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Section: Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Revealing the Surface Effect on Gas Transport and Mechanical Properties in Nonporous Polymeric Membranes in Terms of Surface Free Energy

et al. 2020

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“…Inorganic/organic fillers in solid or liquid or both solid and liquid state can be dispersed in the polymer matrix. As a consequence, MMMs combine the advantages of fillers and polymers [117][118][119][120][121][122][123] . Inorganic fillers are mostly used to the prepare MMMs.…”

Section: Mixed Matrix Peo-based Membranesmentioning

confidence: 99%

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

Bandehali

Moghadassi

Parvizian

et al. 2020

Journal of Energy Chemistry

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“…Additionally, natural gas streams contain a variety of components, some of which (such as water, carbon dioxide, and C 4 + hydrocarbons) can cause membrane degradation and plasticization. In addition to these components, the gas flow may contain entrained oil mist, fine particles, and hydrocarbon vapors, which can easily accumulate on the membrane surface [7][8][9][10] .…”

Section: Introductionmentioning

confidence: 99%

Influence of ZIF-67 Drying Temperatures on the Structure and Properties of PEBAX® MH-1657/ZIF-67 Mixed Matrix Membranes for Enhanced CO2/N2 Separation

Pacheco,

Zawadzki,

Eiras

2024

Mat. Res.

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This study synthesized mixed matrix membranes (MMMs) using PEBAX ® MH-1657 and ZIF-67 with varying particle concentrations (1, 3, and 5 wt%) to assess permeability and selectivity. ZIF-67 nanoparticles were prepared using the solvothermal method with methanol and characterized. Permeation tests were conducted at 10 and 15 bar using N 2 and CO 2 . The analysis revealed ZIF-67 particles with an approximate diameter of 280 nm and confirmed characteristic sodalite peaks. The ideal CO 2 /N 2 selectivity reached 67 (CO 2 permeability = 132 ± 3.5 Barrer) at 15 bar. The impact of ZIF-67 varied with pressure and composition; at 10 bar, CO 2 /N 2 selectivity decreased compared to pure PEBAX ® ; however, at 15 bar, the 1 wt% ZIF-67 membrane exhibited superior selectivity, surpassing Robeson's upper bound. The results indicate that ZIF-67 enhances the permeability and selectivity of PEBAX ® , with superior performance observed at lower concentrations.

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Modern Trends and Applications of Gas Transport Through Various Polymers

Cited by 6 publications

References 114 publications

Revealing the Surface Effect on Gas Transport and Mechanical Properties in Nonporous Polymeric Membranes in Terms of Surface Free Energy

Revealing the Surface Effect on Gas Transport and Mechanical Properties in Nonporous Polymeric Membranes in Terms of Surface Free Energy

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

Influence of ZIF-67 Drying Temperatures on the Structure and Properties of PEBAX® MH-1657/ZIF-67 Mixed Matrix Membranes for Enhanced CO2/N2 Separation

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