Incorporation of an ionic liquid into a midblock-sulfonated multiblock polymer for CO2 capture

Photothermal‐Responsive Microporous Nanosheets Confined Ionic Liquid for Efficient CO2 Separation

“…(Figure 3d) and CH 4 ( Figure S9a, Supporting Information), whether the permeance of gases is in the form of GPU or Barrer. [24,27,28,[48][49][50][51][52][53][54][55][56][57][58] For commercially polymeric membranes, there is a trade-off between separation factor and permeability. This trade-off relationship is related to the "2008 Robeson upper bound".…”

“…Compared with other similar SILMs (Table S2, Supporting Information), Zr‐Fc‐SILM shows superior CO 2 separation properties from N 2 (Figure 3d) and CH 4 (Figure S9a, Supporting Information), whether the permeance of gases is in the form of GPU or Barrer. [ 24,27,28,48–58 ] For commercially polymeric membranes, there is a trade‐off between separation factor and permeability. This trade‐off relationship is related to the “2008 Robeson upper bound”.…”

A Review on Ionic Liquid Gas Separation Membranes

“…Instead, the SMS triblock copolymer was able to form a gel with the [EMIM][TFSA], but did not improve the permeability and selectivity substantially with respect to the pure IL. The pentablock copolymer poly[ tert -butylstyrene- b -(ethylene- alt -propylene)- b -(styrene- co -styrenesulfonate)- b -(ethylene- alt -propylene)- b - tert -butylstyrene] (Nexar ® ), reported by Dai et al [ 289 ], was functionalized with sulfonate groups in the mid-block to increase its polarity and its affinity for CO 2 . This polymer also behaves as a thermoplastic elastomer and successfully formed a self-standing CO 2 /N 2 separation membrane.…”

NEXARTM-coated hollow fibers for air dehumidification

“…NEXAR TM films and coatings have been investigated by different groups, in significant part using apolar solvents such as hexane, cyclohexane, and toluene [25][26][27][28][29]. Adding polar solvents to the casting solutions, such as n-propanol or methanol [21,29], preferentially selective for the sulfonated blocks, or even using ionic compounds such as ionic liquids [30,31], should affect the morphology and relevant operational properties, such as permeance. The use of less selective solvents, such as THF, could facilitate the preparation of films with a morphology closer to the equilibrium one, exclusively driven by the interaction between blocks, without significant influence of solvents or additives.…”