CO2 capture: Tuning cation-anion interaction in urethane based poly(ionic liquids)

Bernard, Franciele L.; Polesso, Bárbara B.; Cobalchini, Fabiana W.; Donato, Augusto Jose; Seferin, Marcus; Ligabue, Rosane Angélica; Chaban, Vitaly V.; Nascimento, Jaílton Ferreira do; Vecchia, Felipe Dalla; Einloft, Sandra

doi:10.1016/j.polymer.2016.08.095

Cited by 41 publications

(76 citation statements)

References 52 publications

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“…However, the RTILs high viscosity can represent a barrier to implementation in the oil and gas industry . One solution for overcoming this disadvantage is the use of poly (ionic liquid)s (PILs) or polymerized ionic liquids …”

Section: Introductionmentioning

confidence: 99%

Polyurethane‐based poly (ionic liquid)s for CO₂ removal from natural gas

Bernard

Santos

Schwab

et al. 2019

J of Applied Polymer Sci

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Carbon dioxide separation from CH 4 is important to the environment and natural gas processing. Poly (ionic liquid)s (PILs) based on polyurethane structures are considered as potential materials for CO 2 capture. Thus, a series of anionic PILs based on polyurethane were synthesized. The effects of polyol chemical structure and counter-cations (imidazolium, phosphonium, ammonium, and pyridinium) in CO 2 sorption capacity and CO 2 /CH 4 separation performance were evaluated. The synthesized PILs were characterized by NMR, DSC, TGA, dinamical mechanical thermo analysis (DMTA), SEM, and AFM. CO 2 sorption, reusability, and CO 2 /CH 4 selectivity were assessed by the pressure-decay technique. The counter-cation and polyol chemical structure play an important role in CO 2 sorption and CO 2 /CH 4 selectivity. PILs exhibited competitive thermal mechanical properties. Results showed that PILPC-TBP was the best poly (ionic liquid) for CO 2 /CH 4 separation. Moreover, poly (liquid ionic) base polyol (polycarbonate) with phosphonium (PILPC-TBP) demonstrated higher CO 2 sorption capacity (21.4 mgCO 2 /g at 303.15 K and 0.08 MPa) as compared to other reported poly (ionic liquids).

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Section: Introductionmentioning

confidence: 99%

Polyurethane‐based poly (ionic liquid)s for CO₂ removal from natural gas

Bernard

Santos

Schwab

et al. 2019

J of Applied Polymer Sci

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“…PU formation was observed by means of characteristic PU bands [52][53][54] at around 2936 -2840 cm −1 (C-H), 1532 cm −1 (HN), 1246 cm −1 (C-N and C-O of urethane), 1100 cm −1 (C-O-C), 3350 cm −1 (N-H of bonded hydrogen) and 1727 cm −1 (C=O). FTIR analysis also showed that band area at 3322 cm -1 tends to increase with both the incorporation and concentration of fillers in PU matrix, indicating an increase in hydrogen bond formation in the presence of fillers 52,53,55 . PU and PU composites FESEM images clearly show that fillers are unevenly dispersed in the PU matrix (Fig.4).…”

Section: Co 2 Sorption Measurementsmentioning

confidence: 96%

Polyurethane /Ionic Silica Xerogel Composites for CO2 Capture

et al. 2019

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Capturing carbon dioxide (CO 2) from exhaust gases is an important strategy to prevent climate change. There is a great interest in developing novel CO 2 sorbents. Thus, a series of polyurethane (PU) / silica xerogels functionalized with RTILs (bmim Cl and bmim TF 2 N) composites were prepared and characterized. PU matrix was reinforced with functionalized silica xerogels in the range of 0.5-20 wt%. PU / functionalized silica xerogels were characterized by NMR, FTIR, DSC, TGA, DMTA and FESEM. CO 2 sorption capacity and reusability were assessed by the pressure-decay technique at 298.15 K and 1 bar. Results showed that the filler aggregation in PU matrix promoted the reduction of mechanical properties. However, addition of silica xerogels functionalized with RTILs in PU matrix led to increased CO 2 uptake. CO 2 sorption capacity tends to increase with the incorporation of silica xerogels functionalized with RTILs in PU matrix. The best CO 2 sorption value was found for PU/SX-[Bmim]-[TF 2 N] 0.5 composite (48.5 mgCO 2 /g at 298.15 K and 1 bar). Moreover, the PU/SX-[Bmim]-[TF 2 N] 0.5 composite showed reuse capacity and higher CO 2 sorption value as compared to other reported composites.

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“…PU/CPIL-TBP composites showed higher selective response than PU/ CELLULOSE 10%. Preferential affinity of CO 2 for PU/CPIL-TBP composites compared to PU/ CELLULOSE 10% is probably due to strong interactions between CO 2 and carboxylate ion of CPIL -TBP 45 .…”

Section: Tensile Properties and Young Moduli Are Presented Inmentioning

confidence: 98%

“…The best result was found for PU/ CPIL-TBP 10% (35.0 mgCO 2 /g). Computational studies showed that TBP cation exhibit weaker coordination of carboxyl group promoting CO 2 sorption through electrostatic binding of CO 2 and carboxylate ion 16,45 . The effect of filler concentration increase in PU matrix on CO 2 sorption capacity is shown in Fig.10.…”

Section: Tensile Properties and Young Moduli Are Presented Inmentioning

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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CO2 capture: Tuning cation-anion interaction in urethane based poly(ionic liquids)

Cited by 41 publications

References 52 publications

Polyurethane‐based poly (ionic liquid)s for CO₂ removal from natural gas

Polyurethane‐based poly (ionic liquid)s for CO₂ removal from natural gas

Polyurethane /Ionic Silica Xerogel Composites for CO2 Capture

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

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CO2 capture: Tuning cation-anion interaction in urethane based poly(ionic liquids)

Cited by 41 publications

References 52 publications

Polyurethane‐based poly (ionic liquid)s for CO2 removal from natural gas

Polyurethane‐based poly (ionic liquid)s for CO2 removal from natural gas

Polyurethane /Ionic Silica Xerogel Composites for CO2 Capture

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

Contact Info

Product

Resources

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Polyurethane‐based poly (ionic liquid)s for CO₂ removal from natural gas

Polyurethane‐based poly (ionic liquid)s for CO₂ removal from natural gas