Cellulose based poly(ionic liquids): Tuning cation-anion interaction to improve carbon dioxide sorption

Bernard, Franciele L.; Duczinski, Rafael; Rojas, Marisol Fernández; Fialho, Maria Carolina C.; Carreño, Luz Ángela; Chaban, Vitaly V.; Vecchia, Felipe Dalla; Einloft, Sandra

doi:10.1016/j.fuel.2017.09.057

Cited by 62 publications

(52 citation statements)

References 80 publications

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“…Solvent casting was successfully implemented in preparation of thick dense films (> 20 micron) and thin-film composites with a selective film (< 20 micron) based on various 'top-down' PE and PE-based materials [43,[68][69][70][71]83,[90][91][92][93]. Still the mechanical properties of the PE chains control the mechanical stability of the resulting films [67].…”

Section: Step 2 Cast Pe Solutionmentioning

confidence: 99%

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Top-Down Polyelectrolytes for Membrane-Based Post-Combustion CO2 Capture

Nikolaeva

Luis

2020

Molecules

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Polymer-based CO2 selective membranes offer an energy efficient method to separate CO2 from flue gas. ‘Top-down’ polyelectrolytes represent a particularly interesting class of polymer materials based on their vast synthetic flexibility, tuneable interaction with gas molecules, ease of processability into thin films, and commercial availability of precursors. Recent developments in their synthesis and processing are reviewed herein. The four main groups of post-synthetically modified polyelectrolytes discern ionised neutral polymers, cation and anion functionalised polymers, and methacrylate-derived polyelectrolytes. These polyelectrolytes differentiate according to the origin and chemical structure of the precursor polymer. Polyelectrolytes are mostly processed into thin-film composite (TFC) membranes using physical and chemical layer deposition techniques such as solvent-casting, Langmuir-Blodgett, Layer-by-Layer, and chemical grafting. While solvent-casting allows manufacturing commercially competitive TFC membranes, other methods should still mature to become cost-efficient for large-scale application. Many post-synthetically modified polyelectrolytes exhibit outstanding selectivity for CO2 and some overcome the Robeson plot for CO2/N2 separation. However, their CO2 permeance remain low with only grafted and solvent-casted films being able to approach the industrially relevant performance parameters. The development of polyelectrolyte-based membranes for CO2 separation should direct further efforts at promoting the CO2 transport rates while maintaining high selectivities with additional emphasis on environmentally sourced precursor polymers.

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Section: Step 2 Cast Pe Solutionmentioning

confidence: 99%

“…PDMAEMA/PSF [70] PDMAEMA/PSF [100] PDADMAC/PSS/GO [90] PAH,Chitosan,PEI,P4VP,PDADMA [47] PDADMAC/PSS [83] PMMA [59] PVBC/PSS [58] PIM-1-PE/PDADMAC [63] PDADMAC/PSS [49] PDADMAC/PSS/βCD [103] PEO2/PMAA2 [48] PAH/(DCDS,PSS,DPPS) […”

Section: Compositesmentioning

confidence: 99%

Top-Down Polyelectrolytes for Membrane-Based Post-Combustion CO2 Capture

Nikolaeva

Luis

2020

Molecules

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“…Samples (Ws≈1g) were previously degassed at 70°C (343.15K) during 2 h. CO 2 sorption measurements were carried out at 25° C (298.15 K) and 0.1 MPa. A detailed description of sorption apparatus and measuring procedure can be found in previous works [26][27][28] . Five CO 2 sorption/desorption cycles were also performed in PU/CPIL composites.…”

Section: Co 2 Sorption Measurementsmentioning

confidence: 99%

Polyurethane/poly (Ionic Liquids) Cellulosic Composites and their Evaluation for Separation of CO2 from Natural Gas

et al. 2019

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The development of both versatile and inexpensive sorbents for CO 2 /CH 4 separation has become one of the greatest challenges to the environment and natural gas processing. This study reports the preparation and characterization of polyurethane (PU)/ cellulose based poly(ionic liquid)(CPIL) composites for CO 2 /CH 4 separation. PU matrix was reinforced with CPIL in the range of 10-30 wt%. Several characterization techniques (TGA, DSC, DMTA and FESEM) were used to study the physical properties of composites when the PU matrix is reinforced with cellulose based poly (ionic liquids) (CPIL) up to 30%. CO 2 sorption, reusability and CO 2 /CH 4 selectivity were assessed by pressure-decay technique. Results showed that CPIL addition in PU matrix promoted the increase in both thermal stability and mechanical properties when compared to PU. The best result for CO 2 sorption (35.0 mgCO 2 /g) was obtained for PU/CPIL-TBP 10% which presented a higher sorption value when compared to PU (24.1 mgCO 2 /g) and PU/CELLULOSE 10% (26.8 mgCO 2 /g). PU/ CPIL-TBP 20% demonstrated higher CO 2 /CH 4 selectivity. PU/CPIL composites appear as promissory materials for CO 2 capture. These compounds combine the benefits of ionic liquids (ILs) (high ionic conductivity, chemical and thermal stability) and cellulose (thermal stability) with PU properties (mechanical stability, processing and tunable macromolecular design).

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“…Poly (ionic liquids) (PILs), a novel chemical material, have received a lot of attention from scientists due to their special characteristics, such as negligible vapor pressure, fine physical and chemical stability, low volatility, non‐flammability, high thermal stability, high ionic conductivity and wide electrochemical potential window . Therefore, PILs have been widely used in the field of chemical adsorption, membrane separation, membrane modification, gel, surfactant, and organic synthesis reactions, such as polymerization reaction, epoxy reaction and oxidation reaction …”

Section: Introductionmentioning

confidence: 99%

Stable poly (ionic liquids) with unique cross‐linked mesoporous‐macroporous structure as efficient catalyst for alkylation of o‐xylene and styrene

Sheng

Gao

Zhou

et al. 2019

Applied Organom Chemis

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In this work, using divinylbenzene (D), 1-vinylimidazole (V) and 1-vinyl-3butylimidazolium bromide ([VBIM][Br]) as monomers, the binary-monomer poly (ionic liquids) (PILs) and ternary-monomer PILs were successfully synthesized, via hydrothermal polymerization and anion exchange, sequentially. Compared with each other, the ternary polymeric acidic IL catalyst has a clear spongy porous structure, while having a more stable macroporous structure, a larger specific surface area, more acidic groups and more active sites. Catalytic performance of catalyst was investigated through the alkylation of o-xylene and styrene. The effect of the amount of IL added and the length of the cation chain on the ternary polymerization of acidic IL was systematically investigated.Under optimal reaction conditions (molar ratio of monomers was D:V: [VBIM][Br] = 2:1:1, the most suitable cation chain length was C 4 ), the synthesized MPD-[C 4 V]-[VBIM][SO 3 CF 3 ] has a larger specific surface area (89.47 m 2 /g), large pore volume (0.29 cm 3 /g), and abundant mesopores and macropores, which help to improve the contact between the active site and reactants. Moreover, the catalyst could maintain a relatively high conversion of styrene (99.0%), 1,2-diphenylethane yield (98.7%) and high thermostability under reaction and be easily be divided from the solution, which is critical for heterogeneous solid catalysts.

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Cellulose based poly(ionic liquids): Tuning cation-anion interaction to improve carbon dioxide sorption

Cited by 62 publications

References 80 publications

Top-Down Polyelectrolytes for Membrane-Based Post-Combustion CO2 Capture

Top-Down Polyelectrolytes for Membrane-Based Post-Combustion CO2 Capture

Polyurethane/poly (Ionic Liquids) Cellulosic Composites and their Evaluation for Separation of CO2 from Natural Gas

Stable poly (ionic liquids) with unique cross‐linked mesoporous‐macroporous structure as efficient catalyst for alkylation of o‐xylene and styrene

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