Multifunctional separation with polyamine-bonded resin

Okada, Tetsuo

doi:10.1016/0003-2670(94)00541-s

Cited by 8 publications

(3 citation statements)

References 18 publications

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“…This is the same elution order that had been reported by Pirogov for the separation of these anions on electrostatically coated [2,4]-, [4,6]-, [3,8]-, [2,8]-, [6,10]- and [6,8]-ionene phases , This elution pattern seems to follow the normal Hofmeister lyotropic salt series for quaternary ammonium materials. , …”

Section: General Characterization Of the Ionene-bonded Phasessupporting

confidence: 86%

Covalently Bound Ionene Polyelectrolyte-Silica Gel Stationary Phases for HPLC

et al. 2001

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Micelle-mimetic ionene-based stationary phases for high-performance liquid chromatography (HPLC) are prepared by attaching [3,16]- and [3,22]-ionenes to aminopropyl silica through a carbon-nitrogen bond. These [x,y]-ionenes are polyelectrolytic molecules consisting of dimethylammonium charge centers interconnected by alternating alkyl chain segments containing x and y methylene groups, some of which can form aggregate species whose properties mimic those of conventional surfactant micelles. These ionene-bonded stationary phases were characterized using different recommended HPLC test mixtures. Test solute chromatographic behavior on the ionene phases was found to be similar to that of intermediate oligomeric or polymeric C-18 and/or phenyl phases, depending upon the specific test mixture employed. In addition, the phases exhibit significant solute shape recognition ability. The ionene stationary phases were successfully employed for the separation of the components of the recommended ASTM reversed-phase test mixture, as well as for ortho-, meta- and para-disubstituted benzenes and other positional or geometric isomeric compounds. The ionene materials allow for chromatographic separations under either reversed-phase or ion-exchange conditions. The retention mechanism on these multimodal phases can occur by hydrophobic partitioning or electrostatic interactions, depending upon the characteristics of the components of the analyte mixture (neutral or anionic). The effects of alteration of the percent organic modifier, flow rate and temperature of the mobile phase on chromatographic retention and efficiency on these phases were briefly examined.

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Section: General Characterization Of the Ionene-bonded Phasessupporting

confidence: 86%

Covalently Bound Ionene Polyelectrolyte-Silica Gel Stationary Phases for HPLC

et al. 2001

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“…Separation of glucose (G) from fructose (F) [1], sucrose (S) in molasses [2,3] and fructose high-fructose corn syrups [4], represent major challenges in industrial sugar chromatographic separations. As adsorbents, ion exchange resins of sulfonated poly(styrene-co-divinylbenzene) (PS-DVB) have been largely used in the sugar industry due to their chemical inertness, higher capacity and selectivity [5,8]. According to their structure, the resins are classified in two major groups: gel-type and macroporous [9,10].…”

Section: Introductionmentioning

confidence: 99%

Comparison of adsorption equilibrium of fructose, glucose and sucrose on potassium gel-type and macroporous sodium ion-exchange resins

Nobre

Santos

Dominguez

et al. 2009

Analytica Chimica Acta

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a b s t r a c tAdsorption equilibrium of fructose, glucose and sucrose was evaluated on sulfonated poly(styrene-codivinylbenzene) cation-exchange resins. Two types of resins were used: potassium (K + ) gel-type and sodium (Na + ) macroporous resins. Influence of the cation and effect of the resin structure on adsorption were studied. The adsorption isotherms were determined by the static method in batch mode for monocomponent and multi-component sugar mixtures, at 25 and 40• C, in a range of concentrations between 5 and 250 g L −1 . All adsorption isotherms were fitted by a linear model in this range of concentrations. Sugars were adsorbed in both resins by the following order: fructose > glucose > sucrose. Sucrose was more adsorbed in the Na + macroporous resin, glucose was identically adsorbed, and fructose was more adsorbed in the K + gel-type resin. Data obtained from the adsorption of multi-component mixtures as compared to the mono-component ones showed a competitive effect on the adsorption at 25• C, and a synergetic effect at 40• C. The temperature increase conducted to a decrease on the adsorption capacity for mono-component sugar mixtures, and to an increase for the multi-component mixtures. Based on the selectivity results, K + gel-type resin seems to be the best choice for the separation of fructose, glucose and sucrose, at 25• C.

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“…A polymer ligand containing anchoring sites like nitrogen, oxygen, or sulfur is obtained either by polymerization of monomer possessing a coordinating site or by a chemical reaction between a polymer and a low molecular weight compound having coordinating ability 4. Various functional groups such as thiols, pyridine, 8‐hydroxy‐quinoline, polyamine, and glycol chains have been immobilized mainly on styrene–divinylbenzene copolymer, glycidylmethacrylate–divinylbenzene copolymer, phenol–formaldehyde resins, and cellulosic materials 5–8…”

Section: Introductionmentioning

confidence: 99%

Synthesis of poly(acrylamide‐co‐4‐vinylpyridine) hydrogels and their application in heavy metal removal

El‐Hamshary

El-Garawany

Assubaie

et al. 2003

J of Applied Polymer Sci

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A series of poly(acrylamide-co-4-vinylpyridine) hydrogels having varied acrylamide/4-vinylpyridine content and different crosslink ratios of N,NЈ-methylenebisacrylamide was prepared by using solution polymerization. The prepared hydrogel polymers were characterized by their elemental analysis, infrared spectroscopy, and equilibrium water content. The polymers were investigated toward metal ion uptake of Mn(II), Co(II), Ni(II), Cu(II), and Zn(II). The polymers were more sensitive to Cu(II) and Ni(II) and the order of metal ion binding was Ni(II), Cu(II) Ͼ Zn(II) Ͼ Co(II) Ͼ Mn(II). Metal ion uptake by the polymers was reduced as the pH of the medium decreased. Recycling of the resins resulted in high recovery of the metal ions from their aqueous solutions.

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Multifunctional separation with polyamine-bonded resin

Cited by 8 publications

References 18 publications

Covalently Bound Ionene Polyelectrolyte-Silica Gel Stationary Phases for HPLC

Covalently Bound Ionene Polyelectrolyte-Silica Gel Stationary Phases for HPLC

Comparison of adsorption equilibrium of fructose, glucose and sucrose on potassium gel-type and macroporous sodium ion-exchange resins

Synthesis of poly(acrylamide‐co‐4‐vinylpyridine) hydrogels and their application in heavy metal removal

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