Poly([(2-methacryloyloxy)ethyl]trimethylammonium chloride): synthesis, characterization, and removal properties of As(V)

Morales, Daniela V.; Rivas, Bernabé L.; Escalona, N.

doi:10.1007/s00289-015-1524-z

Cited by 12 publications

(10 citation statements)

References 14 publications

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“…An increase in the dye removal is attributed to the presence of more available quaternary amine groups in the hydrogel structures. 82,83 A similar trend was observed by Vakili and his colleagues reporting that chitosan hydrogel modified with 3-aminopropyl triethoxysilane removed reactive blue 4 (RB4). Also, chitosan–METMS hydrogel adsorbed dyes more quickly than other samples.…”

Section: Water Uptake Behavior Of Unmodified and Modified Chitosan Hysupporting

confidence: 76%

Impact of Counter Ions of Cationic Monomers on the Production and Characteristics of Chitosan-Based Hydrogel

2019

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Chitosan-based hydrogel has received considerable interests because of its appealing properties and applications in many areas. The primary objective of this work was to produce novel cationic chitosan-based hydrogels via polymerizing chitosan with two cationic monomers of the same structure but with different counter ions [2-(methacryloyloxy)ethyl]trimethylammonium methyl sulfate (METMS) and [2-(methacryloyloxy)ethyl]trimethylammonium chloride (METAC). Polymerization of chitosan with the cationic monomers performed under the conditions of 50 °C, 5 h, 7 pH, and 2/1 mol/mol monomer/chitosan led to chitosan–METMS and −METAC with the cationic charge densities of 3.22 and 2.88 mequiv/g, respectively. Elemental analysis, gel permeation chromatography, Fourier transform infrared, X-ray diffraction, and differential scanning calorimetry analyses were used to confirm the impact of counter ions of cationic monomers (i.e., polarizability of monomers) on their polymerization performance and the characteristics of induced chitosan-based hydrogels. Also, the results of this work postulated that the counter ions associated with the monomers could dramatically impact the water uptake and swelling properties of the generated chitosan-based hydrogels as well as their performance in adsorbing an anionic dye from a simulated solution.

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Section: Water Uptake Behavior Of Unmodified and Modified Chitosan Hysupporting

confidence: 76%

Impact of Counter Ions of Cationic Monomers on the Production and Characteristics of Chitosan-Based Hydrogel

2019

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“…In this research, it was of interest to increase the water and uranyl ion sorption capacity of AAm hydrogels with highly hydrophilic functional groups containing chemical reagents such as AMPS with CMC and MMT via the free radical solution polymerization method. It was reported that some groups have synthesized AMPS‐based cross‐linked polymers and/or copolymers . In these studies, strongly charged properties of sulfonate groups have been described for some polyelectrolyte copolymers based AMPS hydrogels .…”

Section: Introductionmentioning

confidence: 99%

“…It was reported that some groups have synthesized AMPS‐based cross‐linked polymers and/or copolymers . In these studies, strongly charged properties of sulfonate groups have been described for some polyelectrolyte copolymers based AMPS hydrogels . Some physical properties of hydrogels may be improved by preparing semi‐interpenetrating polymer networks (semi IPNs), when the hydrogel network is prepared in the presence of a previously made polymer such as synthetic or natural polymers …”

Section: Introductionmentioning

confidence: 99%

Uranyl Ion Sorption Characteristics of Novel Polymer/Montmorillonite/Carboxymethyl Cellulose‐Composite Biosorbent‐Based AAm/AMPS Hydrogels and Semi‐IPNs

et al. 2016

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In this report, uranyl ion sorption performance from aqueous solutions has been investigated by highly swollen novel polymer/clay-composite biosorbent-based acrylamide (AAm)/2-acrylamido-2-methyl-1-propanesulfonic acid (AMPS) hydrogels and semi-IPNs composed of carboxymethyl cellulose (CMC) and/or montmorillonite (MMT). For this, AAm/AMPS hydrogels with CMC and/or MMT were prepared by free radical polymerization in an aqueous solution of monomers, CMC and MMT using ammonium persulfate/N,N,N',N'-tetramethylethylenediamine as a redox-initiating pair in the presence of poly(ethylene glycol)diacrylate as a cross-linker. Swelling experiments were performed in water at 25°C, gravimetrically. Some swelling kinetic and diffusion parameters were calculated. Water diffusion was found to be non-Fickian in character. The sorption performance of uranyl ions into the hydrogels was studied by a spectrophotometric method at 25°C. Sorption capacity, removal efficiency, and partition coefficient of the hydrogels were investigated. Removal efficiency was changed within a range of 20.52-67.68%.

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“…The presence of heavy metals in the environment is harmful to humans, plants, and animals due to their acute and long term toxicity, non‐biodegradablity, and tendency to accumulate as metallorganic complexes even at low concentrations in living organisms . Lead, one of the most commonly‐used heavy metal pollutants in wastewater, has roots in many industries, such as metal plating, mining, and acid batteries .…”

Section: Introductionmentioning

confidence: 99%

Lead removal from aqueous solutions by 732 cation‐exchange resin

et al. 2015

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Kinetics and thermodynamics of the removal of Pb2+ from an aqueous solution by 732 cation‐exchange resin in hydrogen type (732‐CR) were studied in the temperature range of 298–328 K and Pb2+ concentration range of 5–50 mol/m3. The effects of ion exchange temperature and initial lead ion concentration on the time evolution of the experimental concentration for the metal ion were investigated. Ion exchange kinetics of Pb2+ onto 732‐CR follow the Nernst‐Planck equation and unreacted‐core model (UCM). The diffusion coefficients of counter ions and the efficient diffusion coefficient of lead ions within the resin were calculated. The results show that the ion exchange process is favoured under the particle diffusion control mechanism. The ion exchange isotherm data agreed closely with the Langmuir isotherm. The maximum monolayer exchange capacity for Pb2+ was found to be 484.0 mg/g at 308 K. Thermodynamic studies show that Pb2+ onto 732‐CR is spontaneous and exothermic in nature. The ion exchange processes were verified by Energy Disperse Spectroscopy (EDS).

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Poly([(2-methacryloyloxy)ethyl]trimethylammonium chloride): synthesis, characterization, and removal properties of As(V)

Cited by 12 publications

References 14 publications

Impact of Counter Ions of Cationic Monomers on the Production and Characteristics of Chitosan-Based Hydrogel

Impact of Counter Ions of Cationic Monomers on the Production and Characteristics of Chitosan-Based Hydrogel

Uranyl Ion Sorption Characteristics of Novel Polymer/Montmorillonite/Carboxymethyl Cellulose‐Composite Biosorbent‐Based AAm/AMPS Hydrogels and Semi‐IPNs

Lead removal from aqueous solutions by 732 cation‐exchange resin

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