Pebax–PEG–MWCNT hybrid membranes with enhanced CO2 capture properties

Enhanced CO2 separation properties by incorporating poly(ethylene glycol)-containing polymeric submicrospheres into polyimide membrane

“…The increase of CO 2 /N 2 selectivity is more remarkable than that of CO 2 /CH 4 . This may be because the critical temperature difference between CO 2 (304.1 K) and N 2 (126.2 K) is larger than that of CO 2 and CH 4 (190.6K) [26].…”

“…A custom-built apparatus based on the well-established constant volume/variable pressure method was utilized [26] to measure the permeability, diffusivity and solubility of the gases in membranes.…”

“…Numerous efforts have been devoted to explore PEGcontaining blend membranes [23], copolymer membranes [24] and hybrid membranes [25,26] for efficient CO 2 separation. Considering the moderate polarity of PEG and the favorable affinity between PEG and CO 2 , rationally designed PEG-containing fillers may act as solubility promoter without causing polymer chain rigidification in membranes.…”

Biomethane Purification Using PVDF/Pebax 1657 Thin Film Composite Membrane

“…14 The amide segment of the elastomer was transmitted with the stretching of C=O at 1640 cm -1 . 15,16 Other peaks in the spectrum of the composite membrane at 2869-2939 cm -1 can be attributed to the asymmetric and symmetric stretching of the C-H bond. …”

Widening CO2-facilitated transport passageways in SPEEK matrix using polymer brushes functionalized double-shelled organic submicrocapsules for efficient gas separation

“…Mixed matrix membranes (MMMs) composed of an inorganic filler and a polymer matrix have exhibited the potential of surpassing the trade-off limit [1,[4][5][6][7][8][9][10][11][12]. Fillers such as porous zeolite [13,14], silica nanoparticles [15,16], carbon nanotubes (CNTs) [9,17,18] metal-organic frameworks [19][20][21][22][23], and graphene oxide [24,25] have been doped in different polymer matrix to develop new MMMs with improved gas separation performance.…”