Carbon dioxide transport properties of composite membranes of a polyetherimide and a liquid crystal polymer

Uriarte, C.; Alfageme, J.; Iruin, J. J.

doi:10.1016/s0014-3057(97)00285-1

Cited by 21 publications

(10 citation statements)

References 37 publications

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“…The Pd volume fractions were calculated taking a density value of Pd and PEI equal to 12.023 and 1.27 g/cm 3 , respectively. The permeability coefficient values measured on neat PEI films are in good agreement with those reported in the literature [41,42]. However, the gas fluxes are slightly higher (from about 20%) for the films series prepared from TTB than for the films series prepared from TTA.…”

Section: Gas Transport Mechanism In Annealed Filmssupporting

confidence: 90%

“…These objectives consist in (i) preparing polymer/Pd nanocomposite films with different morphologies for a wide range of palladium amount, from a same polymer/metal precursor system, using thermal annealing as in situ generation route. For this purpose, a high glass transition temperature polymer (polyetherimide) widely used for membrane applications [39][40][41][42][43] was chosen and palladium acetate was taken as the metal precursor (ii) understanding the nanostructuration process and the subsequent morphology developed in the nanocomposites films (iii) establishing the gas transport mechanisms for a series of gases including interactive and non-interactive gases. To attain this goal, particular attention has been paid on the accessibility of the nanoparticles by the gas, on the gas/particle interaction and on the respective nanoparticle and matrix properties.…”

Section: Introductionmentioning

confidence: 99%

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Nanocomposite membranes of polyetherimide nanostructured with palladium particles: Processing route, morphology and functional properties

Clémenson

Espuche

David

et al. 2010

Journal of Membrane Science

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Section: Gas Transport Mechanism In Annealed Filmssupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Nanocomposite membranes of polyetherimide nanostructured with palladium particles: Processing route, morphology and functional properties

Clémenson

Espuche

David

et al. 2010

Journal of Membrane Science

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“…A significant time lag value ( θ = 4564 s, corresponding to a diffusion coefficient equal to 1 × 10 −13 m s −1 ) is measured on the other hand for CO 2 . This result is in agreement with the data reported in the literature for PEI films …”

Section: Resultssupporting

confidence: 93%

“…The permeability coefficients measured for the neat reference PEI film are in good agreement with those reported in the literature (5.74 barrer for H 2 , 1.31 for CO 2 and 6.5 for He in comparison with 5.8, 1.21, and 7.2 barrer, respectively).…”

Section: Resultssupporting

confidence: 89%

Hybrid films of polyetherimide containingin situgrown Ag, Pd, and AgPd alloy nanoparticles: Synthesis route, morphology, and gas transport properties

Simon

Alcouffe

Espuche

2014

J. Polym. Sci. Part B: Polym. Phys.

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In this study, bimetallic/polymer films are synthesized from polyetherimide (PEI), palladium acetate and silver nitrate for a wide range of total metal amount (from 0 to 30 wt %) and different Ag to Pd molar ratios. Hybrid precursor films are first prepared from polymer/metal complex solutions and the metal nanoparticles are then generated within the PEI matrix by annealing the precursor film under specific conditions. Reference neat PEI films and monometallic films are prepared in the same conditions. Interestingly, formation of AgPd alloys directly within the polymer films is for the first time obtained from a very simple and environmentally friendly route. Based on X‐ray diffraction and transmission electron microscopy analyses, a nanostructuration mechanism is proposed. The interactions of hydrogen towards the nanocomposites are investigated and discussed as a function of the nanoparticle composition. The impact of the nanostructuration is also studied on H2, CO2, and He permeation properties. Significant improvement of barrier properties is achieved. The pertinent parameters of the gas transport are identified and modelled for each gas/composite system. Finally, from both morphological and gas transport analyses, it is concluded that in situ generation AgPd alloys with Pd to Ag ratio above 1 leads to very interesting and promising materials. © 2014 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2014, 52, 1211–1220

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“…(CHEN et al, 2015). O PEI possui importante capacidade de sorção de CO2 devido à presença dos grupos imida, o que justifica sua investigação para membranas visando a captura de CO2 (URIARTE; ALFAGEME; IRUIN, 1998). Pelo fato de ser um polímero vítreo, ou seja, possui temperatura de transição vítrea acima da temperatura ambiente, o PEI é significativamente resistente à plastificação pelo CO2.…”

Section: âNgulo De Contatounclassified

Desenvolvimento de membranas assimétricas de polieterimida e estudo comparativo pós modificação bioinspirada

Vermeersch¹

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In the last years membrane separation processes became markably interesting for the industry, mainly due to financial scope. Polymer membranes are frequently employed in these processes because of its thermal and chemical stability that make them versatile materials. The performance of gas membrane separation processes is proceeded through selectivity measurement, which analyse the permeability of membrane for gases. A challenge in the production of polymeric membrane is achieve good permeability and selectivity in the same material, to attend applications needs. One of the objectives of this work was to investigate the influence of production stage variables on the membranes' morphology. The method chosen was the phase inversion and an experimental design was performed to delineate the conditions to obtain membranes of polyetherimide. In the next step, the following characterizations were performed: Scanning electronic microscopy (SEM), contact angle (CA), water vapour transmission (WVT) and selectivity of the gaseous pair, oxygen (O2) and carbon dioxide (CO2). The results obtained for transport analysis received a statistical treatment to point the best sample to be used in the second step of this work: a bioinspired modification through surface polydopamine deposition. The sample PEI 3 that presented the second larger WVT rate and median selectivity was chosen for this purpose. Finally, the results of selectivity transport analysis of the gaseous pair oxygen (O2) and carbon dioxide (CO2) for non modified and modified membranes were compared. It was possible to conclude that the surface modification promotes increase in WVT rates and O2 permeance.

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Carbon dioxide transport properties of composite membranes of a polyetherimide and a liquid crystal polymer

Cited by 21 publications

References 37 publications

Nanocomposite membranes of polyetherimide nanostructured with palladium particles: Processing route, morphology and functional properties

Nanocomposite membranes of polyetherimide nanostructured with palladium particles: Processing route, morphology and functional properties

Hybrid films of polyetherimide containingin situgrown Ag, Pd, and AgPd alloy nanoparticles: Synthesis route, morphology, and gas transport properties

Desenvolvimento de membranas assimétricas de polieterimida e estudo comparativo pós modificação bioinspirada

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