Studies on polyacrylates containing pendant ligand with carbonyl and hydroxyl functions and their divalent metal complexes

Kaliyappan, T.; Rajagopan, S.; Kannan, P.

doi:10.1002/app.12812

Cited by 14 publications

(12 citation statements)

References 31 publications

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“…[7] Apparently, the formation constant of Cu 2+ ions-polymer is higher than those of other metal ions; this behavior has been previously observed by other research groups. [22] In addition, the ionic radius for Cu +2 is 71 pm and for Pb +2 it is 112 pm; the stability of the chelate is expected to be less favorable for ions of larger size, which is consistent with earlier investigations. [1] Moreover, variation of contact time showed maximum loading capacities of the different metal ions for the polymer of 245, 236, 221, and 201 mg/g resin for Cu +2 , Zn +2 , Ni +2 , Pb +2 , respectively.…”

Section: Rate Of Metal-ion Uptake As a Function Of Contact Timesupporting

confidence: 78%

Preparation of a New Polystyrene Supported-Ethylenediaminediacetic Acid Resin and its Sorption Behavior toward Divalent Metal Ions

Charef¹,

Benmaamar²,

Arrar³

et al. 2012

Solvent Extraction and Ion Exchange

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A new polystyrene-supported ethylenediaminediacetic acid resin has been synthesized through a reaction between the amination of the commercially available 4-chloromethyl polystyrene polymer with ethylenediamine and the subsequent carboxymethylation with monobromoacetic acid, using ethylenediamine as spacer. The chelation behavior of this resin toward the divalent metal ions Cu 2+ , Ni 2+ , Zn 2+ , and Pb 2+ in aqueous solutions was investigated. Batch equilibration experiments were carried out as a function of contact time, pH, amount of metal-ion, and polymer mass. The amount of metal-ion uptake of the polymer was determined by using atomic absorption spectrometry (AAS). Results of the investigation revealed that the resin exhibited higher capacities and a more pronounced adsorption toward Cu 2+ and that the metal-ion uptake follows the order: Cu 2+ > Zn 2+ > Ni 2+ > Pb 2+ . The adsorption and binding capacity of the resin toward the various metal ions investigated are discussed.

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Section: Rate Of Metal-ion Uptake As a Function Of Contact Timesupporting

confidence: 78%

Preparation of a New Polystyrene Supported-Ethylenediaminediacetic Acid Resin and its Sorption Behavior toward Divalent Metal Ions

Charef¹,

Benmaamar²,

Arrar³

et al. 2012

Solvent Extraction and Ion Exchange

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“…Parmer et al 7 synthesized 2,4-dihydroxy acetophenone formaldehyde resin in an acidic medium and studied its chelation properties. Preparation of a copper-selective polymeric ligand by the reaction of phenol formaldehyde and piperazine was reported by Hodgkin et al 8 In continuation of our research 9,10 in this area, the present article deals with the synthesis and characterization of poly(8-hydroxy-4-azoquinolinephenol-formaldehyde) and its Cu(II) and Ni(II) metal complexes.…”

Section: Introductionmentioning

confidence: 92%

Studies of poly(8‐hydroxy‐4‐azoquinolinephenol‐formaldehyde) and its metal complexes

Vijayalakshmi

Subramanian

Rajagopan

et al. 2006

J of Applied Polymer Sci

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Poly(8-hydroxy-4-azoquinolinephenol-formaldehyde) resin (8H4AQPF) was prepared by condensing 8-hydroxy 4-azoquinoline phenol with formaldehyde (1 : 1 mol ratio) in the presence of oxalic acid. Polychelates were obtained when the DMF solution of poly(8H4AQPF) containing a few drops of ammonia was treated with the aqueous solution of Cu(II) and Ni(II) ions. The polymeric resin and polymer-metal complexes were characterized with elemental analysis and spectral studies. The elemental analysis of the polymer-metal complexes suggested that the metalto-ligand ratio was 1 : 2. The IR spectral data of the polychelates indicated that the metals were coordinated through the nitrogen and oxygen of the phenolic OOH group. Diffuse reflectance spectra, electron paramagnetic resonance, and magnetic moment studies revealed that the polymermetal complexes of the Cu(II) complexes were square planar and those of the Ni(II) complexes were octahedral. X-ray diffraction studies revealed that the polymer metal complexes were crystalline. The thermal properties of the polymer and polymer-metal complexes were also examined.

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“…14 The electronic and EPR studies on Spheron-1000 shows a 2 : 1 mol ratio for Ni(II) and Co(II) complexes. In continuation of our research in polymer-metal complexes, 15,16 the present investigation deals with the synthesis, characterization and thermal property of new poly(8-hydroxy-4-azoquinolinephenylmethacrylate) and its Cu(II) and Ni(II) complexes.…”

Section: Introductionmentioning

confidence: 99%

Studies on poly(8‐hydroxy‐4‐azoquinolinephenylmethacrylate) and its metal complexes

Vijayalakshmi

Subramanian

Rajagopan

et al. 2005

J of Applied Polymer Sci

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8-Hydroxy-4-azoquinolinephenylmethacrylate (8H4AQPMA) was prepared and polymerized in ethyl methyl ketone (EMK) at 65°C using benzoyl peroxide as free radical initiator. Poly(8-hydroxy-4-azoquinolinephenylmethacrylate) poly(8H4AQPMA) was characterized by infrared and nuclear magnetic resonance techniques. The molecular weight of the polymer was determined by gel permeation chromatography. Cu(II) and Ni(II) complexes of poly(8H4AQPMA) were prepared. Elemental analysis of polychelates suggests that the metal-ligand ratio is about 1 : 2. The polychelates were further characterized by infrared spectra, X-ray diffraction, spectral studies, and magnetic moments. Thermal analyses of the polymer and polychelates were carried out in air.

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Studies on polyacrylates containing pendant ligand with carbonyl and hydroxyl functions and their divalent metal complexes

Cited by 14 publications

References 31 publications

Preparation of a New Polystyrene Supported-Ethylenediaminediacetic Acid Resin and its Sorption Behavior toward Divalent Metal Ions

Preparation of a New Polystyrene Supported-Ethylenediaminediacetic Acid Resin and its Sorption Behavior toward Divalent Metal Ions

Studies of poly(8‐hydroxy‐4‐azoquinolinephenol‐formaldehyde) and its metal complexes

Studies on poly(8‐hydroxy‐4‐azoquinolinephenylmethacrylate) and its metal complexes

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