Roll-to-roll dip coating of three different PIMs for Organic Solvent Nanofiltration

Cook, Marcus; Gaffney, Piers R. J.; Peeva, Ludmila; Livingston, Andrew G.

doi:10.1016/j.memsci.2018.04.046

Cited by 99 publications

(69 citation statements)

References 42 publications

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“…[ 8,23–26 ] Early reports demonstrated that IP‐based polyarylate TFCs can be sucessfully produced from PIM‐motifs, e.g., spirobisindane‐derived biscatechol sodium salts reacted with trimesoylchloride (TMC) proposed for use in OSN. [ 27 ] Similar to the work reported for dip‐coated ladder PIMs, [ 22 ] the resulting membranes demonstrated high organic solvent permeances due to their microporous texture but exhibited only moderate organic solute rejections (i.e., moderate solute cutoff), thereby limiting their potential for commercial OSN applications. Interestingly, water permeance and salt rejection properties of the polyarylate‐based TFCs have not been reported to date.…”

Section: Figuresupporting

confidence: 60%

“…For example, Cook et al demonstrated successful dip‐coating of several ladder polymers (PIM‐1, PIM‐7, PIM‐8) on crosslinked polyetherimide (Ultem 1000) and polyacrylonitrile porous supports with thicknesses of ≈100–300 nm. [ 22 ] The membranes showed reasonable solvent permeances (PIM‐1 displayed methanol permeance of 2.5 LMH bar −1 ) but suffered from moderate solute rejections translating to high MWCOs in the range of 500–800 g mol −1 for OSN applications. For small solutes such as 300 g mol −1 polystyrene, PIM‐1 exhibited only a rejection of <5% in methanol.…”

Section: Figurementioning

confidence: 99%

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Finely Tuned Submicroporous Thin‐Film Molecular Sieve Membranes for Highly Efficient Fluid Separations

et al. 2020

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promising energy efficient separation processes in the chemical separation industry. Its continued growth can be attributed to lower energy requirements translating to lower capital and operating cost as well as significantly reduced environmental impact compared to conventional thermal separation processes. Additionally, membrane technology offers the advantages of continuous process operation, modular design, and small system footprint and is predicted to be a main contributor to global energy-and carbon-reduction initiatives in the coming decades. [2] In 2008, the global membrane market was valued at ≈12 billion USD with a compound annual growth rate (CAGR) of ≈10%. [3] Reverse osmosis (RO) and nanofiltration (NF) membranes contribute significantly to the total global membrane sales with the majority of products comprising of variations of thin-film composite (TFC) membranes made by interfacial polymerization. Such highly crosslinked aromatic submicroporous (i.e., pore size < 4 Å) [4] polyamide TFC membranes-pioneered by John Cadotte-revolutionized the desalination industry due to their unprecedented combination of high water flux and salt rejection. [5][6][7][8] Surprisingly, despite their immense commercial success for aqueous RO and NF applications, the IP membrane formation process has not been implemented in other large-scale fluid separation processes, especially organic solvent nanofiltration (OSN) and gas separations. [9][10][11] Polymers of intrinsic microporosity (PIMs) are an emerging group of solution processible amorphous microporous materials (pore size < 20 Å) gaining significant attention in membranebased separations due to their ability to transcend the conventional permeability/selectivity trade-off relationships. [12][13][14][15] Such materials exhibit exceptionally high free volumes as a result of inefficient chain packing by architectural designs using highly rigid and contorted spirobisindane-, triptycene-, ethanoanthracene-, and Tröger's base-building blocks. [13,[16][17][18][19][20][21] To date, technical challenges associated with fabricating defect-free, inexpensive, thin-film composite membranes as well as the inability to achieve low-molecular-weight cutoffs (MWCOs) have severely limited the industrial use of PIM-based and similar membrane materials. For example, Cook et al. demonstrated successful Polymeric membranes with increasingly high permselective performances are gaining a significant role in lowering the energy burden and improving the environmental sustainability of complex chemical separations. However, the commercial deployment of newly designed materials with promising intrinsic properties for fluid separations has been stalled by challenges associated with fabrication and scale up of low-cost, high-performance, defect-free thin-film composite (TFC) membranes. Here, a facile method to fabricate next-generation TFC membranes using a bridged-bicyclic triptycene tetra-acyl chloride (Trip) building block with a large fraction of finely tuned structural submicroporosity (por...

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Section: Figuresupporting

confidence: 60%

Section: Figurementioning

confidence: 99%

Finely Tuned Submicroporous Thin‐Film Molecular Sieve Membranes for Highly Efficient Fluid Separations

et al. 2020

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“…PIMs have been exploited as separating layer material for thin film composites (e.g., thin selective film down to 35 nm constructed by PIM-1 via spin coating [250] ) by many works for OSN. [257][258][259] Functionalization of PIMs can further enhance the OSN properties. For example, an interesting work about selective membrane permeation of enantiomers by chiral PIMs was disclosed by Shea and co-workers.…”

Section: Organic Solvent Nanofiltrationmentioning

confidence: 99%

Emerging Functional Porous Polymeric and Carbonaceous Materials for Environmental Treatment and Energy Storage

Zheng

Lin

Zhang

et al. 2019

Adv Funct Materials

207

118

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The demand for practical and cost-effective environmental treatment and energy storage materials is exploding. Porous polymeric and carbonaceous materials have attracted tremendous interest on account of their welldeveloped porosity and tunable surface chemistry. Functionalization of pore structures further enhances their properties for environmental treatment and energy storage. Herein, the procedures for functionalization of porous structures are introduced, including predesign and postsynthetic strategies. Subsequently, the important advancements of emerging porous polymers for environmental treatment in sorption (e.g., organic micropollutant adsorption, heavy metal ion removal, radionuclide extraction, and oil absorption) and membrane separation (e.g., aqueous micropollutant separation, organic solvent nanofiltration, desalination and pervaporation), as well as for energy storage ranging from the electrodes and separators of batteries to supercapacitor electrodes are highlighted. Moreover, given the combined merits of high intrinsic conductivity, porosity, and physicochemical stability, novel polymer-based porous carbons for energy storage are also highlighted. Key functionalization chemistry for each application is discussed and an in-depth understanding of the structure-property relationships of these functional porous materials is provided. Finally, the challenges and perspectives of emerging functional porous polymeric and carbonaceous materials for environmental treatment and energy storage are proposed.

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“…PIM-1 was synthesized according to a published procedure. 24 Before membrane fabrication, the MOF was activated at 110 C. In a typical fabrication, 20 mg of the MOFs and 90 mg of PIM-1 were dispersed in 5 mL dichloromethane to create a homogeneous suspension. The resulting suspension was then stirred overnight.…”

Section: Co 2 and Co 2 Uptake And Co 2 Uv-light Responsive Testmentioning

confidence: 99%

An insight into the effect of azobenzene functionalities studied in UiO-66 frameworks for low energy CO₂ capture and CO₂/N₂ membrane separation

Prasetya

Ladewig

2019

J. Mater. Chem. A

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Roll-to-roll dip coating of three different PIMs for Organic Solvent Nanofiltration

Cited by 99 publications

References 42 publications

Finely Tuned Submicroporous Thin‐Film Molecular Sieve Membranes for Highly Efficient Fluid Separations

Finely Tuned Submicroporous Thin‐Film Molecular Sieve Membranes for Highly Efficient Fluid Separations

Emerging Functional Porous Polymeric and Carbonaceous Materials for Environmental Treatment and Energy Storage

An insight into the effect of azobenzene functionalities studied in UiO-66 frameworks for low energy CO₂ capture and CO₂/N₂ membrane separation

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Roll-to-roll dip coating of three different PIMs for Organic Solvent Nanofiltration

Cited by 99 publications

References 42 publications

Finely Tuned Submicroporous Thin‐Film Molecular Sieve Membranes for Highly Efficient Fluid Separations

Finely Tuned Submicroporous Thin‐Film Molecular Sieve Membranes for Highly Efficient Fluid Separations

Emerging Functional Porous Polymeric and Carbonaceous Materials for Environmental Treatment and Energy Storage

An insight into the effect of azobenzene functionalities studied in UiO-66 frameworks for low energy CO2 capture and CO2/N2 membrane separation

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Product

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About

An insight into the effect of azobenzene functionalities studied in UiO-66 frameworks for low energy CO₂ capture and CO₂/N₂ membrane separation