Synthesis and characteristics of aminated vinylbenzyl chloride-co-styrene-co-hydroxyethyl acrylate anion-exchange membrane for redox flow battery applications

Park, Sung‐Gyu; Kwak, Noh-Seok; Hwang, Chi Won; Park, Hui-Man; Hwang, Taek Sung

doi:10.1016/j.memsci.2012.08.040

Cited by 30 publications

(5 citation statements)

References 33 publications

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“…The polymerization was performed according to [80]. VBCOQ (8.0 g, 25.9 mmol) and p-vinyl benzyl phosphonic acid (1.3 g, 6.5 mmol) were dissolved in DMF/toluene (1:3) (100 mL) and heated up to 80 • C. AIBN (24 mg, 0.15 mmol) was added and the polymerization was kept for 48 h. The solvent was partially removed in vacuum, the polymer was precipitated in chilled diethyl ether and dried in vacuum to give a pale-yellow polymer (4.9 g).…”

Section: Polymerization 251 Co-polymerization Vbcoq With Vbpohmentioning

confidence: 99%

Comparable Studies on Nanoscale Antibacterial Polymer Coatings Based on Different Coating Procedures

et al. 2022

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The antibacterial activity of different antibiotic and metal-free thin polymer coatings was investigated. The films comprised quaternary ammonium compounds (QAC) based on a vinyl benzyl chloride (VBC) building block. Two monomeric QAC of different alkyl chain lengths were prepared, and then polymerized by two different polymerization processes to apply them onto Ti surfaces. At first, the polymeric layer was generated directly on the surface by atom transfer radical polymerization (ATRP). For comparison purposes, in a classical route a copolymerization of the QAC-containing monomers with a metal adhesion mediating phosphonate (VBPOH) monomers was carried out and the Ti surfaces were coated via drop coating. The different coatings were characterized by X-ray photoelectron spectroscopy (XPS) illustrating a thickness in the nanomolecular range. The cytocompatibility in vitro was confirmed by both live/dead and WST-1 assay. The antimicrobial activity was evaluated by two different assays (CFU and BTG, resp.,), showing for both coating processes similar results to kill bacteria on contact. These antibacterial coatings present a simple method to protect metallic devices against microbial contamination.

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Section: Polymerization 251 Co-polymerization Vbcoq With Vbpohmentioning

confidence: 99%

Comparable Studies on Nanoscale Antibacterial Polymer Coatings Based on Different Coating Procedures

et al. 2022

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“…Sulfonated or quaternary ammonium poly(arylene ether ketones) (PAEK), polysulfones (PSU), polyphenylene oxides (PPO) or polyimides (PI) have been reported as promising ion exchange polymers for these applications [ 30 , 31 , 32 , 33 , 34 ]. Crosslinked ionomers have also been investigated for the application in ion exchange membranes [ 35 ] as the degree of crosslinking can be used to tune membrane properties [ 36 ]. Densely crosslinked ionic polymers exhibit better dimensional stability and reach good mechanical toughness [ 37 ].…”

Section: Introductionmentioning

confidence: 99%

Composite Anion Exchange Membranes Fabricated by Coating and UV Crosslinking of Low-Cost Precursors Tested in a Redox Flow Battery

et al. 2021

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This paper presents a novel, cost-effective approach to the fabrication of composite anion exchange membranes (AEMs). Hierarchical AEMs have been fabricated by coating a porous substrate with an interpenetrating polymer network (IPN) layer where poly(vinylpyrrolidone) (PVP) is immobilized in a crosslinked matrix. The IPN matrix was formed by UV initiated radical crosslinking of a mixture of acrylamide-based monomers and acrylic resins. The fabricated membranes have been compared with a commercial material (Fumatech FAP 450) in terms of ionic transport properties and performance in a vanadium redox flow battery (VRFB). Measures of area-specific resistance (ASR) and vanadium permeability for the proposed membranes demonstrated properties approaching the commercial benchmark. These properties could be tuned by changing the content of PVP in the IPN coating. Higher PVP/matrix ratios facilitate a higher water uptake of the coating layer and thus lower ASR (as low as 0.58 Ω.cm2). On the contrary, lower PVP/matrix ratios allow to reduce the water uptake of the coating and hence decrease the vanadium permeability at the cost of a higher ASR (as high as 1.99 Ω.cm2). In VRFB testing the hierarchical membranes enabled to reach energy efficiency comparable with the commercial AEM (PVP_14—74.7%, FAP 450—72.7% at 80 mA.cm−2).

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“…Besides modification of Nafion, another important way is to develop hydrocarbon polymer ion exchange membranes as alternative such as sulfonated poly(ether ether ketone), [13][14][15] sulfonated poly(arylene ether sulfone), [16][17][18] poly(vinylidene difluoride) graft polymers, 19 aminated vinylbenzyl chloride-co-styrene-co-hydroxyethyl acrylate, 20 pyridinium groups-containing poly(phenyl sulfone), 21 quaternized poly(phthalazinone ether ketone ketone), and quaternized poly(phthalazinone ether sulfone ketone) membrane. 22,23 Compared to cation exchange membranes, anion exchange membranes usually show lower permeability of vanadium ions due to Donnan exclusion effect between the immobilized cation functional groups of membrane and vanadium ions.…”

Section: Introductionmentioning

confidence: 99%

Preparation and properties of polybenzimidazole/quaternized poly(1-vinylimidazole) cross-linked blend membranes for vanadium redox flow battery applications

Liu

Xia

Jin

et al. 2017

High Performance Polymers

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A series of novel cross-linked blend membranes have been successfully prepared from poly(2,2 0-(p-oxydiphenylene)-5,5 0bibenzimidazole) (OPBI) and partially quaternized poly(1-vinylimidazole) (QPVI) at varied polymer weight ratios using 1,6-dibromohexane as the cross-linker. The resulting cross-linked blend membranes are ductile and transparent. Crosslinking causes slight increase in tensile strength and significant improvement in immobilization of the QPVI. The effect of the QPVI content on membrane properties such as mechanical properties, thermal stability, ion exchange capacity, water uptake, swelling ratio, and anion conductivity is investigated. The charge-discharge performance of the single cells assembled with the cross-linked blend membranes has also studied and compared with that of the one assembled with Nafion 117. The cross-linked blend membranes exhibit three to four orders lower VO 2þ permeability than Nafion 117 leading to much slower self-discharge rate and significantly higher coulombic efficiency of the former. The single cells assembled with the cross-linked blend membranes show higher coulombic efficiency and energy efficiency at low current densities than the one assembled with Nafion 117. Furthermore, the single cell assembled with the cross-linked blend membrane OPBI/QPVI(3:7, weight ratio)-Cross-linked (CL) shows little decay in energy efficiency after 300 chargedischarge cycles test at 80 mA cm À2 indicating good durability of this membrane.

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Synthesis and characteristics of aminated vinylbenzyl chloride-co-styrene-co-hydroxyethyl acrylate anion-exchange membrane for redox flow battery applications

Cited by 30 publications

References 33 publications

Comparable Studies on Nanoscale Antibacterial Polymer Coatings Based on Different Coating Procedures

Comparable Studies on Nanoscale Antibacterial Polymer Coatings Based on Different Coating Procedures

Composite Anion Exchange Membranes Fabricated by Coating and UV Crosslinking of Low-Cost Precursors Tested in a Redox Flow Battery

Preparation and properties of polybenzimidazole/quaternized poly(1-vinylimidazole) cross-linked blend membranes for vanadium redox flow battery applications

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