Poly(vinylalcohol)/poly(ethyleneglycol)/poly(ethyleneimine) blend membranes - structure and CO2 facilitated transport

Hamouda, Sofiane Ben; Nguyen, Quang Trong; Langévin, D.; Roudesli, Sadok

doi:10.1016/j.crci.2009.10.009

Cited by 62 publications

(34 citation statements)

References 21 publications

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“…Because of its simplicity, reproducibility and commercial feasibility, polymer blending is considered as an ideal technique to obtain the tailor-made polymeric membrane (Ben Hamouda et al, 2010;Kim et al, 1997;Patrício et al, 2006). Furthermore, the membrane prepared with blended polymers shows better membrane-forming ability, improved mechanical properties and gas performance, which makes polymer blending essential for membrane technology (Ben Hamouda et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Poly(amide-12-b-ethylene oxide)/glycerol triacetate blend membranes for CO2 separation

Feng

Ren

et al. 2013

International Journal of Greenhouse Gas Control

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Section: Introductionmentioning

confidence: 99%

Poly(amide-12-b-ethylene oxide)/glycerol triacetate blend membranes for CO2 separation

Feng

Ren

et al. 2013

International Journal of Greenhouse Gas Control

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“…The results show that only CO 2 was transported by the facilitated transport mechanism and that PEI functioned efficiently as the carrier of CO 2 . Hamouda et al [13] prepared a (PVA)/PEI/poly(ethylene glycol) (PEG) membrane and investigated its CO 2 /N 2 separation performance. A higher membrane selectivity towards CO 2 via PEG sorption and phase separation of PEG in the PVA/PEI/PEG matrix was not acquired.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, the studies mentioned above indicate that the PEG/PEI blend is immiscible. In attempting to find an explanation, PEG/PEI blends were prepared in our laboratory; macro phase separation was clearly observed due to the fact that solvation molecular dynamics partially screening out the repulsive interaction between solvated chain segments are removed upon drying, so that repulsive polymer segmemt-segment interaction may prevail [13]. The repulsive interaction may be caused by the electon-rich [15].…”

Section: Introductionmentioning

confidence: 99%

Preparation of a Facilitated Transport Membrane Composed of Carboxymethyl Chitosan and Polyethylenimine for CO2/N2 Separation

Shen

Ganning

et al. 2013

IJMS

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The miscibility of carboxymethyl chitosan/polyethylenimine (CMCS/PEI) blends was analyzed by FT-IR, TGA and SEM. Defect-free CMCS/PEI blend membranes were prepared with polysulfone (PSf) ultrafiltration membranes as support layer for the separation of CO2/N2 mixtures. The results demonstrate that the CMCS/PEI blend is miscible, due to the hydrogen bonding interaction between the two targeted polymers. For the blended membrane without water, the permeability of CO2 gas is 3.6 × 10−7 cm3 cm−2 s−1 cmHg−1 and the corresponding separation factor for CO2 and N2 gas is about 33 at the pressure of 15.2 cmHg. Meanwhile, the blended membrane with water has the better permselectivity. The blended membrane containing water with PEI content of 30 wt% has the permeance of 6.3 × 10−4 cm3 cm−2 s−1 cmHg−1 for CO2 gas and a separation factor of 325 for CO2/N2 mixtures at the same feed pressure. This indicates that the CO2 separation performance of the CMCS/PEI blend membrane is higher than that of other facilitated transport membranes reported for CO2/N2 mixture separation.

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“…Poly(vinyl alcohol) (PVA) and its blend with polyethyleneimine (PEI) have attracted great interest due to their potential application in functional membranes as well as for fibers [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Thermal properties in strong hydrogen bonding systems composed of poly(vinyl alcohol), polyethyleneimine, and graphene oxide

Choi¹,

Hwang²,

Lee

2014

Carbon letters

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Blends of poly(vinyl alcohol) (PVA), polyethyleneimine (PEI), and graphene oxide (GO) were prepared by solution casting method. Calorimetric thermal properties of the blends were investigated. The T g s of PVA/PEI blends were higher than the T g s of either of the component polymers at low concentrations of PEI. These abnormal increases of T g s may be due to the negative entropy of mixing which is associated with strong hydrogen bonding between PVA and PEI. The degree of depression of s was not reduced by the negative entropy of mixing, since strong hydrogen bonding also causes an increase in the magnitude of negative c between PVA and PEI. The T g of PVA was increased significantly by adding 0.7 wt.% GO into PVA. The magnitude of negative c was increased by adding GO into the blends of PVA and PEI.

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Poly(vinylalcohol)/poly(ethyleneglycol)/poly(ethyleneimine) blend membranes - structure and CO2 facilitated transport

Cited by 62 publications

References 21 publications

Poly(amide-12-b-ethylene oxide)/glycerol triacetate blend membranes for CO2 separation

Poly(amide-12-b-ethylene oxide)/glycerol triacetate blend membranes for CO2 separation

Preparation of a Facilitated Transport Membrane Composed of Carboxymethyl Chitosan and Polyethylenimine for CO2/N2 Separation

Thermal properties in strong hydrogen bonding systems composed of poly(vinyl alcohol), polyethyleneimine, and graphene oxide

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