scholarly journals Transport properties of PVA/PEI/PEG composite membranes: sorption and permeation characterizations

2008 ◽  
Vol 6 (4) ◽  
pp. 634-640 ◽  
Author(s):  
Sofiane Ben Hamouda ◽  
Sadok Roudesli
Keyword(s):  
Chemical Structure ◽  
Composite Membranes ◽  
Fickian Diffusion ◽  
Sorption Behavior ◽  
Solution Casting ◽  
Dual Mode ◽  
Sorption Model ◽  
Co2 Sorption ◽  
Lower Permeability ◽  
N2 Sorption

AbstractPoly(vinylalcohol)/poly(ethyleneglycol)/poly(ethyleneimine) blend membranes were prepared by solution casting followed by solvent evaporation. The chemical structure of the prepared membranes was analyzed by FTIR and DSC. The sorption behavior as well as the permeabilities of the membranes for pure CO2 and N2 were investigated. The results show that the PVA/PEI/PEG membranes possess a higher permeability of CO2 and a lower permeability of N2. The membrane displays a CO2 permeability of 27 Barrer, and a N2 permeability of 3 Barrer at 25°C and 1 bar. CO2 sorption behavior of the composite membrane, which can be classified as a dual-mode sorption model, and N2 sorption behavior of the copolymeric membrane is in agreement with the Fickian diffusion model.

Water Sorption Behavior in Different Aromatic Ionomer Composites Analyzed with a “New Dual-Mode Sorption” Model

2014 ◽  
Vol 47 (18) ◽  
pp. 6331-6342 ◽  
Author(s):  
Yongli Li ◽  
Quang T. Nguyen ◽  
Kateryna Fatyeyeva ◽  
Stéphane Marais
Keyword(s):  
Water Sorption ◽  
Sorption Behavior ◽  
Dual Mode ◽  
Sorption Model

Water sorption in Nafion® membranes analyzed with an improved dual-mode sorption model—Structure/property relationships

2013 ◽  
Vol 439 ◽  
pp. 1-11 ◽  
Author(s):  
Yongli Li ◽  
Quang Trong Nguyen ◽  
Camille Lixon Buquet ◽  
Dominique Langevin ◽  
Marc Legras ◽  
...  
Keyword(s):  
Water Sorption ◽  
Model Structure ◽  
Structure Property ◽  
Dual Mode ◽  
Sorption Model ◽  
Structure Property Relationships

Halogen···Halogen Interactions in the Supramolecular Assembly of 2D Coordination Polymers and the CO2 Sorption Behavior

2016 ◽  
Vol 16 (9) ◽  
pp. 5514-5519 ◽  
Author(s):  
Faruk Ahmed ◽  
Syamantak Roy ◽  
Kaushik Naskar ◽  
Chittaranjan Sinha ◽  
Seikh Mafiz Alam ◽  
...  
Keyword(s):  
Coordination Polymers ◽  
Supramolecular Assembly ◽  
Sorption Behavior ◽  
Co2 Sorption

Dual-mode analysis of subatomspheric-pressure CO2 sorption and transport in Kapton H polyimide film

1986 ◽  
Vol 24 (4) ◽  
pp. 779-792 ◽  
Author(s):  
T. Uragami ◽  
H. B. Hopfenberg ◽  
W. J. Koros ◽  
D. K. Yang ◽  
V. T. Stannett ◽  
...  
Keyword(s):  
Polyimide Film ◽  
Mode Analysis ◽  
Dual Mode ◽  
Co2 Sorption

scholarly journals Synthesis and CO2 sorption of silica particles, kinetics and thermodynamics

2014 ◽  
Vol 10 (5) ◽  
pp. 2711-2719
Author(s):  
Hasna BOUHALI ◽  
Nabila CHALAL ◽  
Hadj HAMAIZI ◽  
Abdelkader BENGUEDDACH
Keyword(s):  
Mesoporous Silica ◽  
Silica Particles ◽  
Sorption Behavior ◽  
Porous Texture ◽  
Co2 Sorption ◽  
Ordered Mesoporous ◽  
Adsorption Of Co2 ◽  
Adsorption Desorption ◽  
Langmuir And Freundlich Equations ◽  
Good Agreement

Spherical ordered mesoporous silica particles with radially oriented mesopores were successfully prepared by using non-ionic amphiphilic di-block co-polymers CnH2n+1-(EO)x-OH as template and tetraorthosilicate (TEOS) as silica precursor. The synthesized mesoporous silica materials were characterized by XRD, N2 adsorption-desorption and SEM techniques. CO2 adsorption at 0 °C was evaluated by a volumetric method, and the CO2 sorption behavior was described by applying both Langmuir and Freundlich equations. Results indicate a high adsorption capacity of CO2 (5-9 mmol/g), depending essentially on the porous texture of the materials. An adsorption kinetic model was proposed to describe the adsorption of CO2 over template-free mesoporous siliceous materials. A good agreement with experimental data was found.

Preparation and characterization of porous PVdF-HFP/graphene oxide composite membranes by solution casting technique

2019 ◽  
Vol 30 (22) ◽  
pp. 20079-20087 ◽  
Author(s):  
Pavithra Shanmugaraj ◽  
Ashwini Swaminathan ◽  
Ranjith Kumar Ravi ◽  
Mahadevaiah Dasaiah ◽  
P. Senthil Kumar ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Composite Membranes ◽  
Solution Casting ◽  
Casting Technique ◽  
Oxide Composite ◽  
Solution Casting Technique

scholarly journals Polyimide/Ionic Liquid Composite Membranes for Middle and High Temperature Fuel Cell Application: Water Sorption Behavior and Proton Conductivity

Membranes ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 82 ◽  
Author(s):  
Kateryna Fatyeyeva ◽  
Sergiy Rogalsky ◽  
Stanislav Makhno ◽  
Oksana Tarasyuk ◽  
Jorge Soto Puente ◽  
...  
Keyword(s):  
Chain Length ◽  
Proton Conductivity ◽  
Elevated Temperatures ◽  
Alkyl Chain ◽  
Composite Membranes ◽  
Alkyl Chain Length ◽  
Proton Exchange ◽  
Phase Behaviour ◽  
Porous Polymer ◽  
Sorption Behavior

Four water insoluble room-temperature protic ionic liquids (PILs) based on the N-alkylimidazolium cation with the alkyl chain length from 1 to 4 and bis(trifluoromethylsulfonyl)imide anion were synthesized and their chemical structure was confirmed by the 1H NMR and 19F NMR analysis. PILs were revealed to be thermally stable up to 360 and 400 °C. At the same time, the proton conductivity of PILs was found to be dependent mostly on the temperature and, to a less extent, on the type of the cation, i.e., the increase of the conductivity from ~3 × 10−4 S/cm at 25 °C to 2 × 10−2 S/cm at 150 °C was observed. The water vapour sorption capacity of PILs was evaluated as a function of relative humidity and the influence of the alkyl chain length on the phase behaviour in the PIL-water system was discussed. The composite polyimide/PILs membranes were prepared by the PIL immobilization in the porous polymer (Matrimid® 5218) film. The composite membranes showed a high level of proton conductivity (~10−3 S/cm) at elevated temperatures (up to 160 °C). The obtained results reveal that the elaborated composite polyimide/PIL membranes are promising candidates for the application as proton exchange membrane at middle and high temperatures.

Sign in / Sign up

Export Citation Format

Share Document