Synthesis of modified poly(ether ether ketone) polymer for the preparation of ultrafiltration and nanofiltration membranes via phase inversion

Hendrix, Katrien; Vaneynde, Marianne; Koeckelberghs, Guy; Vankelecom, Ivo F.J.

doi:10.1016/j.memsci.2013.07.006

Cited by 69 publications

(27 citation statements)

References 53 publications

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“…PEEK-WC can also be in its sulphonated form as SPEEK-WC [17]. Another recent approach for modifying PEEK was reported by Hendrix et al [18,19]. This research group proposes two ways of modifying PEEK, either by adding a different monomer [18] or by crosslinking PEEK [19] (see Table 1).…”

Section: Introductionmentioning

confidence: 99%

Organic solvent resistant poly(ether-ether-ketone) nanofiltration membranes

Burgal

Peeva

Kumbharkar

et al. 2015

Journal of Membrane Science

150

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Section: Introductionmentioning

confidence: 99%

Organic solvent resistant poly(ether-ether-ketone) nanofiltration membranes

Burgal

Peeva

Kumbharkar

et al. 2015

Journal of Membrane Science

150

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“…Other researchers have highlighted the ability to increase the rejection rate by slowing down the phase separation rate [72][73][74][75]. Most of the results are in favor with the relationship between membrane flux and salt rejection [76][77][78]. NF membranes have varied applications [79].The major applications of NF include water treatment for production of potable water as well as treatment of wastewater and its reuse [80].…”

Section: Nanofiltratonmentioning

confidence: 99%

Advancements in Technologies for Water Treatment

Amin¹,

Joshi²,

Bhanushali³

2018

IJCTR

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Seawater desalination and wastewater treatment for its reuse are rapidly evolving technologies as water crisis is one of the major issues around the globe. Different purification technologies and advancements in the processes, for instance variation in pretreatments for a better separation process and other related aspects are the areas frequently worked on. Evolution of water treatment techniques over last 40 years is fairly vast and new ideas related to nanotechnology are emerging in the industries with a view of more efficient functioning. The article focusses on the large scale water treatment techniques, their characteristics, relative principles, methodology and evolution. It also indicates the variety of membranes manufactured by established company over the years and emphasizes on their different properties and applications with changing compositions. The article narrows down to concentrate on the membrane separation processes as they are globally popular techniques in bulk water treatment.

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“…In-depth analysis of the phase inversion parameters is thus still necessary to achieve the best performance with UV-cured PSU-membranes via this method. Among the most effective parameters to tune phase inversion parameters [9,[42][43][44][45][46], evaporation time prior to immersion, choice of co-solvent and solvent/co-solvent ratio are easily accessible and well understood [41,[46][47][48][49][50][51][52]. In present study, the influence of evaporation time and the role of co-solvent (tetrahydrofuran (THF) or 1,4-dioxane (DIO)) on the formation, performance and morphology of UV depthcured PSU-based is thus investigated to further optimize this type of interesting membranes with respect to use in SRNF.…”

Section: Viscosity Measurementsmentioning

confidence: 99%

UV-cured polysulfone-based membranes: Effect of co-solvent addition and evaporation process on membrane morphology and SRNF performance

Altun

Rémigy

Vankelecom

2017

Journal of Membrane Science

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This is an author's version published in: http://oatao.univ-toulouse.fr/20454 To cite this version:Altun, Veysi and Remigy, Jean-Christophe and Vankelecom, Ivo F.J. UV-cured polysulfone-based membranes: Effect of co-solvent addition and evaporation process on membrane morphology and A B S T R A C T Membranes consisting of a semi-interpenetrating network of polysulfone (PSU) and cross-linked polyacrylate were synthesized via non-solvent induced phase inversion followed by UV-treatment. Tetrahydrofuran (THF) or 1,4-dioxane (DIO) was added as co-solvent to the N,N-dimethylformamide (DMF)-based polymer solutions and cast films were subjected to evaporation prior to coagulation. Effects of synthesis variables on the membrane morphology and solvent resistant nanofiltration (SRNF) performance were investigated by using a Rose Bengal solution in isopropanol. By increasing the evaporation time from 0 to 100 s for the membranes prepared with THF and DIO as co-solvent respectively, rejections increased from 65.3% to 94.2% and 60.1-89.1%, while permeances decreased from 0.29 to 0.01 l/m 2 h bar and 0.41-0.08 l/m 2 h bar. A similar effect was observed when the co-solvent/solvent ratio was increased from 0/100 to 100/0: rejections increased from 63.1% to 94.9% and 59.2-90.6%, while permeances decreased from 0.43 to 0.01 l/m 2 h bar for THF-based membranes and to 0.07 l/m 2 h bar for DIO-based membranes respectively. A post-treatment was performed to increase the flux by immersing UV-cured PSU-based films in DMF for 48 h. The resultant membranes showed higher permeances and lower rejections, making them especially useful as potential candidates for stable supports to apply selective layers upon, such as e.g. in thin film composite (TFC) membranes. As observed in scanning electron microscopy, higher evaporation times and lower initial co-solvent concentrations resulted in less or even no macrovoids.

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Synthesis of modified poly(ether ether ketone) polymer for the preparation of ultrafiltration and nanofiltration membranes via phase inversion

Cited by 69 publications

References 53 publications

Organic solvent resistant poly(ether-ether-ketone) nanofiltration membranes

Organic solvent resistant poly(ether-ether-ketone) nanofiltration membranes

Advancements in Technologies for Water Treatment

UV-cured polysulfone-based membranes: Effect of co-solvent addition and evaporation process on membrane morphology and SRNF performance

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