Covalently-bonded hyperbranched poly(styrene-divinylbenzene)-based anion exchangers for ion chromatography

Uzhel, A.S.; Затираха, А.В.; Shchukina, O.I.; Smolenkov, A. D.; Шпигун, О. А.

doi:10.1016/j.chroma.2016.10.009

Cited by 43 publications

(8 citation statements)

References 28 publications

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“…Porous polymers can be employed in many areas, among which the most common are absorption and adsorption, such as sorption of CO 2 1 ion exchange processes 2 , and support materials for immobilization of biocatalysts 3 . These polymers, with spherical shape, can been prepared by conventional heterogeneous polymerization processes, such as suspension, emulsion, dispersion and precipitation; multistage heterogeneous polymerizations, such as seeded suspension polymerization and seed assembly (to form supraballs); hypercrosslinking (Davankov approach); and polymerization of HIPEs (high internal phase emulsions) 4 .…”

Section: Introductionmentioning

confidence: 99%

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Glycidyl Methacrylate-ethylene Glycol Dimethacrylate Copolymers with Varied Pore Structures Prepared with Different Reaction Parameters

et al. 2020

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Copolymers based on glycidyl methacrylate (GMA) are considered attractive as sorbents because the epoxy groups can be easily converted into other groups. Studies involving the influence of the synthesis parameters on the morphological characteristics of these copolymers are scarce. This work investigates the synthesis of copolymers of poly(GMA-co-EGDMA) with different porosity degrees obtained by varying the synthesis parameters. GMA-EGDMA copolymers were synthesized by suspension polymerization employing varied conditions and characterized by measuring apparent density, surface area and pore volume distribution, optical and scanning electron microcopies, FT-IR, thermogravimetry and titration of epoxide rings. The copolymer with highest surface area and pore volume (260.4 m 2 /g and 0.5 cm 3 /g) was prepared employing cyclohexane as diluent, 80% EGDMA in monomeric composition and 100% of dilution degree. There was a relation between the epoxide content of the copolymers determined by titration and the residue content formed in the first decomposition stage.

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Section: Introductionmentioning

confidence: 99%

“…Among the porous polymers extensively applied for adsorption and absorption processes and as supports are styrene-divinylbenzene (Sty-DVB) copolymers [1][2][3] . These copolymers are commonly prepared by aqueous suspension polymerization, and can have gel-like or porous structures.…”

Section: Introductionmentioning

confidence: 99%

Glycidyl Methacrylate-ethylene Glycol Dimethacrylate Copolymers with Varied Pore Structures Prepared with Different Reaction Parameters

et al. 2020

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“…The studied anions F -, Cl -, NO 3 -and SO 4 2-are separated by 3.6 mmol/lNa 2 CO 3 eluent under the optimized parameters ( Table 1). Examples of the obtained chromatograms are presented on Figure 1.…”

Section: Resultsmentioning

confidence: 99%

“…Due to the intensive technological development new molecules appeared in the environment, which imposes determination of new analytes in common matrices or standard anions in new matrices. Novel stationary phases with appropriate selectivity and high separation efficiency have been proposing din attempt to respond to this challenge [3,4]. The environmental and health authorities, as well as modern industrial technologies impose stringer and stringer demands to the water quality and methods for determination at trace levels are highly demanded [5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Validation of Ion Chromatographic Method for Determination of Standard Inorganic Anions in Treated and Untreated Drinking Water

Ivanova

Surleva

Koleva³

2018

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. An ion chromatographic method for determination of fluoride, chloride, nitrate and sulphate in untreated and treated drinking waters was described. An automated 850 IC Professional, Metrohm system equipped with conductivity detector and Metrosep A Supp 7-250 (250 x 4 mm) column was used. The validation of the method was performed for simultaneous determination of all studied analytes and the results have showed that the validated method fits the requirements of the current water legislation. The main analytical characteristics were estimated for each of studied analytes: limits of detection, limits of quantification, working and linear ranges, repeatability and intermediate precision, recovery. The trueness of the method was estimated by analysis of certified reference material for soft drinking water. Recovery test was performed on spiked drinking water samples. An uncertainty was estimated. The method was applied for analysis of drinking waters before and after chlorination.

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“…However, their applications are limited mainly because of poor selectivity. Since large delocalized π‐electron system endows PS‐DVB with a strong affinity with other functional groups, selectivity and efficiency of PS‐DVB strongly depends not only on the characteristics of substrate particles, but also on the surface groups . There have been several reports regarding the application of polymer matrices anchoring various functional groups, such as halides, carboxylic and sulfonic esters, alcohols , phenols , azobenzenes , aliphatic amines, and so on .…”

Section: Introductionmentioning

confidence: 99%

Sulfonated poly(styrene‐divinylbenzene) modified with amines and the application for pipette‐tip solid‐phase extraction of carbendazim in apples

Liu

Tang

et al. 2017

J of Separation Science

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Sulfonated poly(styrene-divinylbenzene) modified with five kinds of amine functional groups was applied to the determination of carbendazim in apple samples with a pipette-tip solid-phase extraction method. The structures of the polymers were characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, and thermogravimetric analysis. Five different modifications of the solid-phase extraction sorbent based on sulfonated poly(styrene-divinylbenzene) were tested under static and pipette-tip solid-phase extraction conditions. The polymer modified with p-methoxyaniline showed the best recognition capacity and adsorption amount for carbendazim. Under the optimum conditions, 3.00 mg of the adsorbent, 1.00 mL of ethyl acetate as washing solvent, and 1.00 mL of ammonia/acetonitrile (5:95, v/v) as elution solvent were used in the pretreatment procedure of apple samples. The calibration graphs of carbendazim in methanol were linear over 5.00-200.00 μg/mL, and the limits of detection and quantification were 0.01 and 0.03 μg/mL, respectively. The method recoveries of carbendazim were in the range of 91.31-98.13% with associated intraday relative standard deviations of 0.76-2.13% and interday relative standard deviations of 1.10-1.85%. Sulfonated poly(styrene-divinylbenzene) modified with p-methoxyaniline showed satisfactory results (recovery: 97.96%) and potential for the rapid purification of carbendazim in apple samples combined with the pipette-tip solid-phase extraction.

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Covalently-bonded hyperbranched poly(styrene-divinylbenzene)-based anion exchangers for ion chromatography

Cited by 43 publications

References 28 publications

Glycidyl Methacrylate-ethylene Glycol Dimethacrylate Copolymers with Varied Pore Structures Prepared with Different Reaction Parameters

Glycidyl Methacrylate-ethylene Glycol Dimethacrylate Copolymers with Varied Pore Structures Prepared with Different Reaction Parameters

Validation of Ion Chromatographic Method for Determination of Standard Inorganic Anions in Treated and Untreated Drinking Water

Sulfonated poly(styrene‐divinylbenzene) modified with amines and the application for pipette‐tip solid‐phase extraction of carbendazim in apples

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