Synthesis of polyketone-g-sodium styrene sulfonate cation exchange membrane via irradiation and its desalination properties

Kim, In Sik; Hwang, Chi Won; Kim, Young Joong; Canlier, Ali; Jeong, Kwang Seob; Hwang, Taek Sung

doi:10.1007/s13233-017-5145-2

Cited by 12 publications

(6 citation statements)

References 23 publications

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“…PK-based and derived polymers have been used to produce microporous membranes entailed with antifouling properties, [5,6] chemical resistance, [7,8] for the microfiltration and purification of water from both chemical and biological contaminants. In recent years, the simple aliphatic PK chain (both derived from ethylene/CO copolymerization or ethylene/propylene/CO terpolymerization) has been modified through either radiation grafting copolymerization [9,10] or Paal-Knorr cyclization reaction with functionalized primary amines. [11] The latter strategy for PK functionalization occurs without the need for radiation or additional catalysts, introducing pyrrole moieties in the backbone with pendant functional groups.…”

Section: Introductionmentioning

confidence: 99%

Inorganic‐Organic Hybrid Anion Conducting Membranes Based on Ammonium‐Functionalized Polyethylene Pyrrole‐Polyethylene Ketone Copolymer

Alvi

Vezzù

Pagot

et al. 2022

Macro Chemistry & Physics

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New inorganic-organic hybrid anion exchange membranes are produced after incorporation of tantalum oxide into trimethylammonium-functionalized polyethylene pyrrole-co-polyethylene ketone (functionalized polyketone, FPK), obtained by the chemical modification of a polyketone polymer. The influence of tantalum oxide fillers on the properties of the synthesized membranes is investigated. The interaction between inorganic fillers and the polymer chains is studied using Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy (ATR-FTIR). The thermal analysis of the FPK membranes reveals they are thermally stable at up to 250°C. However, the incorporation of the inorganic fillers reduces the thermal stability. Modulated Differential Scanning Calorimetry (MDSC) results indicate that the inclusion of inorganic fillers leads to an increase in crystallinity. This study reports that the properties of the bulk polymer can be tuned by controlling the degree of functionalization and content of inorganic fillers, as confirmed by Near Ambient Pressure X-Ray Photoelectron Spectroscopy (NAP-XPS) studies. Finally, Broadband Electrical Spectroscopy (BES) studies demonstrate that the hybrid membranes are characterized by several polarization phenomena contributing to the overall ion conductivity of the material, which at RT is of 1.46 and 1.61 mS cm −1 for the FPK cast membrane and the hybrid membrane with 5.0 wt.% of Ta 2 O 5 filler, respectively.

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Section: Introductionmentioning

confidence: 99%

Inorganic‐Organic Hybrid Anion Conducting Membranes Based on Ammonium‐Functionalized Polyethylene Pyrrole‐Polyethylene Ketone Copolymer

Alvi

Vezzù

Pagot

et al. 2022

Macro Chemistry & Physics

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“…This highlights the potential detrimental effects to MCDI performance of enhanced membrane hydrophilicity. To improve these properties, the same group prepared new membranes based on the modification of polyketone films with ion exchanger NaSS (PKs- g -NaSS) . The NaSS was grafted onto the polyketone backbone via γ-irradiation.…”

Section: Developments In Ion-exchange Materials For MCDImentioning

confidence: 99%

“…To improve these properties, the same group prepared new membranes based on the modification of polyketone films with ion exchanger NaSS (PKs-g-NaSS). 111 The NaSS was grafted onto the polyketone backbone via γ-irradiation. The membranes gave a comparable IEC (1.10 mequiv g −1 ) but a lower WU (34.6%) compared to those of previously prepared PVDF-g-PSVBS CEMs, resulting in an increased SRE of 87.6% at the same feed salt concentration (250 mg L −1 ) and operating conditions (1.5 V adsorption/−1.5 V desorption).…”

Section: Developments In Ion-exchange Materials For MCDImentioning

confidence: 99%

Ion-Exchange Materials for Membrane Capacitive Deionization

2020

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The scarcity of clean water is a problem affecting large parts of the world. In fact, the World Health Organization/ UNICEF Joint Monitoring Programme for Water Supply, Sanitation and Hygiene (2019) estimates that up to 2.2 billion people lack access to safely managed drinking water services. To address this, desalination techniques such as reverse osmosis, flash distillation, and electrodialysis have been utilized to convert the plentiful amounts of salt water into consumable water supplies for the general population. In the past 15 years, membrane capacitive deionization (MCDI) has emerged as an alternative desalination technique that has since received extensive research attention. MCDI has sought to challenge benchmark methods such as reverse osmosis, removing salt by application of a voltage between two electrodes covered with ion-exchange membranes, all under ambient conditions. The incorporation of ion-exchange materials over electrodes in MCDI has been shown to maximize the desalination performance in terms of salt removal and energy efficiency. This review provides a comprehensive assessment of the developments relating to ion-exchange materials in MCDI. The fabrication and characterization methods of the materials have been outlined and compared with those of commercially available ion-exchange membranes where possible. A critical comparison of the ion-exchange materials has been conducted, and the commercial viability of the technologies has been evaluated. In light of the findings of the review, the authors have indicated future directions and action points the field should look to address in the coming years. It is hoped that the findings of this review can contribute to the largescale commercialization and application of MCDI, which can improve aspects of water treatment and quality, contaminant removal, and sanitation on a global scale.

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“…Nam et al prepared a membrane containing pyrene on a polyketone and carbon nanotube composite material, using a Grignard reagent 10 . Furthermore, Kim et al published a study on the preparation of an ion exchange membrane grafted with styrene sodium sulfonate on polyketone using radiations and examined its electrical desalination properties and a study on fabricating a film for a separator based on the excellent gas barrier properties of polyketones 11 . These studies relate to membrane‐based contamination reduction technology, exploration of new membrane materials, and optimization of the methods for membrane manufacturing and key factors affecting the process.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and physicochemical characterization of sulfonated polyketone ion exchange membrane using response surface methodology

Lee

Kim

Lim

et al. 2022

Polymers for Advanced Techs

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In this study, the process parameters used for the synthesis of sulfonated polyketone in the preparation of ion exchange membranes were optimized using the response surface methodology (RSM). Sulfonated polyketone ion exchange membranes were prepared by varying three process parameters: concentration of the sulfonating agent, reaction temperature, and reaction time. The properties of the prepared membranes, such as the degree of sulfonation, water uptake, swelling ratio, ion exchange capacity, and mechanical properties, were evaluated. According to the RSM analysis, the degree of sulfonation and swelling ratio of the sulfonated polyketone ion exchange membranes were predominantly affected by the concentration of the sulfonating agent, whereas the water uptake and mechanical properties were predominantly affected by the reaction temperature. The optimal process parameters determined for the synthesis of sulfonated polyketone in the ion exchange membranes are: sulfonating agent concentration of 0.4 wt.%, reaction temperature of 40°C, and reaction time of 62.6 min, which resulted in an ion exchange capacity of 0.88 meq/g. Based on these results, it was concluded that the analysis using RSM is very useful because the experiments and statistical analysis showed similar results.

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Synthesis of polyketone-g-sodium styrene sulfonate cation exchange membrane via irradiation and its desalination properties

Cited by 12 publications

References 23 publications

Inorganic‐Organic Hybrid Anion Conducting Membranes Based on Ammonium‐Functionalized Polyethylene Pyrrole‐Polyethylene Ketone Copolymer

Inorganic‐Organic Hybrid Anion Conducting Membranes Based on Ammonium‐Functionalized Polyethylene Pyrrole‐Polyethylene Ketone Copolymer

Ion-Exchange Materials for Membrane Capacitive Deionization

Synthesis and physicochemical characterization of sulfonated polyketone ion exchange membrane using response surface methodology

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