Effect of different metal in situ growing routes on the morphology and gas separation properties of polyetherimide/palladium nanocomposite asymmetric membranes

Simon, Sandra; Espuche, Éliane

doi:10.1016/j.seppur.2014.03.023

Cited by 13 publications

(7 citation statements)

References 49 publications

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“…When the addition amount of TBT reaches 6 wt% and 8 wt%, both PEI-6 and PEI-8 separators only show a broad diffraction peak between 2θ = 10 -30 , which is the characteristic peak of typical amorphous PEI. 46,47 It can be concluded that when more TBT is added, the water that enters the polymer system is rapidly consumed by the hydrolysis reaction of TBT, which leads to an increase in the exchange speed between the solvent and the non-solvent during the phase exchange process. This finally allows the crystalline PVP as a pore-forming agent in the resulting separators to be removed more thoroughly.…”

Section: Resultsmentioning

confidence: 99%

Porous polyetherimide separators controlled in‐situ by tetrabutyl titanate as polymer electrolyte with ionic liquid for lithium‐oxygen batteries

Liu

Wang

et al. 2021

Int J Energy Res

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Due to its advantages in specific capacity, lithium-oxygen batteries are expected to increase the recharge mileage of electric vehicles. However, the safety and cycle stability problems of lithium-oxygen batteries have not been completely resolved. Herein, through the non-solvent-induced phase separation method combined with the in-situ hydrolysis modification strategy of tetrabutyl titanate, a type of polyetherimide (PEI) separator with typical fingershaped pores and honeycomb-shaped supporting layer pore structure was prepared. After being infiltrated by EMIM-BF 4 ionic liquid electrolyte, the ionic conductivity of the separator can reach 0.75 mS cm À1 . Due to the low crystallinity, high thermal stability, and stable ion transport pore structure of the separators, the assembled lithium-oxygen batteries can stably cycle for more than 75 cycles under the condition of a limit of 1000 mAh g À1 . In addition, under the strategy of high-performance cathode catalysts and electrolyte additives, the application of the porous PEI separators in lithium-oxygen batteries will be further expanded.

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Section: Resultsmentioning

confidence: 99%

Porous polyetherimide separators controlled in‐situ by tetrabutyl titanate as polymer electrolyte with ionic liquid for lithium‐oxygen batteries

Liu

Wang

et al. 2021

Int J Energy Res

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“…Therefore, data of the material's tensile properties is very important. The latter is especially relevant within the case of hollow fiber membranes, within which the interior pressure is translated like a shot into a tensile force on the membrane wall [18,19].…”

Section: Evaluation Of Polymer To Separate the Phasesmentioning

confidence: 99%

“…A basic approach uses the permeableness of the 2 phases and also the filler concentration (Maxwell's model). Some modifications were projected so as to require into consideration the filler ratio, likewise because the contribution of the interface polymer/filler [18]. Porous fillers are wont to enhance transport rates, though it's been incontestable that dense fillers may have this result if the polymer-particle interface plays a very important role [19].…”

Section: Evaluation Of Polymer To Separate the Phasesmentioning

confidence: 99%

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Separation of Gas and Vapour using Ethylene-Octane Polymer Membranes

Naranis¹

2014

J Bioprocess Biotech

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Organic vapors are additional pervious than permanent gases within the composite membranes, with solvent and resolving permeability being concerning orders of magnitude beyond permanent gas permeableness. Gas and vapor transport properties were studied in mixed matrix membranes containing elastomeric ethylene-octene polymer (EOC or poly(ethylene-co-octene)) with 3 styles of carbon fillers: virgin or modify multi-walled carbon nanotubes (CNTs) for the open-chain organic compound (hexane), hydrocarbon (toluene), alcohol (ethanol), likewise as water for the representative samples. Gas permeableness of EOC lies between that of the additional pervious PDMS and also the less pervious semi-crystalline polythene and plastic. The results of the carbon-filled membranes supply views for application in gas/vapor separation with improved mechanical resistance.

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“…Since the preparation method is facile and these asymmetric membranes are available, they are expected to be favorable candidates for guided bone regeneration [26]. It is necessary to mention that asymmetric membranes with excellent properties are applied in various applications like filtration and gas separation [27,28].…”

Section: Introductionmentioning

confidence: 99%

Asymmetric Membranes: A Potential Scaffold for Wound Healing Applications

et al. 2020

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Currently, due to uprising concerns about wound infections, healing agents have been regarded as one of the major solutions in the treatment of different skin lesions. The usage of temporary barriers can be an effective way to protect wounds or ulcers from dangerous agents and, using these carriers can not only improve the healing process but also they can minimize the scarring and the pain suffered by the human. To cope with this demand, researchers struggled to develop wound dressing agents that could mimic the structural and properties of native skin with the capability to inhibit bacterial growth. Hence, asymmetric membranes that can impair bacterial penetration and avoid exudate accumulation as well as wound dehydration have been introduced. In general, synthetic implants and tissue grafts are expensive, hard to handle (due to their fragile nature and poor mechanical properties) and their production process is very time consuming, while the asymmetric membranes are affordable and their production process is easier than previous epidermal substitutes. Motivated by this, here we will cover different topics, first, the comprehensive research developments of asymmetric membranes are reviewed and second, general properties and different preparation methods of asymmetric membranes are summarized. In the two last parts, the role of chitosan based-asymmetric membranes and electrospun asymmetric membranes in hastening the healing process are mentioned respectively. The aforementioned membranes are inexpensive and possess high antibacterial and satisfactory mechanical properties. It is concluded that, despite the promising current investigations, much effort is still required to be done in asymmetric membranes.

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Effect of different metal in situ growing routes on the morphology and gas separation properties of polyetherimide/palladium nanocomposite asymmetric membranes

Cited by 13 publications

References 49 publications

Porous polyetherimide separators controlled in‐situ by tetrabutyl titanate as polymer electrolyte with ionic liquid for lithium‐oxygen batteries

Porous polyetherimide separators controlled in‐situ by tetrabutyl titanate as polymer electrolyte with ionic liquid for lithium‐oxygen batteries

Separation of Gas and Vapour using Ethylene-Octane Polymer Membranes

Asymmetric Membranes: A Potential Scaffold for Wound Healing Applications

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