Functionalization of polysterene. II synthesis of chelating polymers by alkylation of 4-aminomethylpolystyrene

Warshawsky, Abraham; Deshe, A.; Rossey, Guy; Patchornik, A.

doi:10.1016/0167-6989(84)90096-5

Cited by 21 publications

(10 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The degree of aminolysis with ethylenediamine in room temperature was about 67% and concentration of ligands 3.2 mmol/g. According to Warshawsky's method [28] the degree of transformation by urotropine was about 97% and concentration of amino groups was 5.9 mmol/g.…”

Section: Resultsmentioning

confidence: 99%

“…The VBC/DVB copolymers was swollen in dioxane (1:10 v/v) for 24 h and then chloromethyl groups of copolymer were aminolysed with ethylenediamine (ETDA) in dioxane solution (12:1 mol/mol at room temperature for 168 h -anion exchanger 1). Anion exchanger 2 with amino groups was obtained by treatment with urotropine according to [28]. The amino groups were condensated with aldehyde groups of salicylaldehyde (A) or picolinaldehyde (B) in Water regain was measured using a centrifugation technique.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Oxidation of 2,6-di-tert-butylphenols to Diphenoquinones Catalysed by Schiff Base-Cu(II) Systems Immobilized on Polymer Support

2006

View full text Add to dashboard Cite

Benzoquinone, diphenoquinones and its derivatives are important intermediates for industrial synthesis of a wide variety of special chemicals, such as pharmaceuticals, dyes and agricultural chemicals. The useful catalyst were obtained by aminolysis of vinylbenzyl chloride/divinylbenzene copolymer with ethylenediamine (1) or urotropine (2) and then modification by salicylaldehyde (1A, 2A) or picolinaldehyde (1B, 2B). The catalytic activity of Cu(II) complexes with Schiff base immobilized on the synthesized supports were tested in the oxidation reaction of 2,6-di-tert-butylphenol (DTBP) to diphenoquinone (PQ) with tertbutylhydroperoxide. The best oxidation degree of DTBP (60-70%) and the selectivity towards PQ (80%) is revealed by Cu(II) complexes with long Schiff base ligands derived from salicylaldimine (1A), which have CuL structure (EPR measurement).

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Oxidation of 2,6-di-tert-butylphenols to Diphenoquinones Catalysed by Schiff Base-Cu(II) Systems Immobilized on Polymer Support

2006

View full text Add to dashboard Cite

show abstract

“…A hydrophilic oxine resin with enhanced copper ion exchange capacity has been synthesized from alkylated poly(benzylamine) and 5-chloromethyl-8-hydroxyquinoline. 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

View full text Add to dashboard Cite

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.

show abstract

“…Practically, it solves the problem of sterilization of products and allows one to fabricate a pure product, not contaminated with residual toxic matters. Radiation polymerization studies on preparing hydrogels include the mechanism of reaction, kinetics, and structure 11–14. In previous work, the preparation of a hydrogel based on acrylic acid and trithioglycolic acid by radiation polymerization, and its application in the recovery of metal ions, was reported 15.…”

Section: Introductionmentioning

confidence: 99%

Radiation synthesis and application of a hydrogel based on acrylic acid and 2‐mercaptobenzimidazole

El-Din

2002

J of Applied Polymer Sci

View full text Add to dashboard Cite

ABSTRACT:A hydrogel based on gamma-radiation polymerization of acrylic acid (AAc) in the presence of 2-mercaptobenzimidazole (MBI) and a crosslinking agent was prepared. The properties of this AAc/MBI hydrogel were characterized in terms of gel content, swelling in different solvents, structure morphology, and IR spectroscopy. Moreover, the thermal decomposition behavior of the prepared hydrogel was investigated by thermogravimetric analysis (TGA). The TGA thermograms were also used to determine the different kinetic parameters such as order of reaction and activation energy.

show abstract

Functionalization of polysterene. II synthesis of chelating polymers by alkylation of 4-aminomethylpolystyrene

Cited by 21 publications

References 16 publications

Oxidation of 2,6-di-tert-butylphenols to Diphenoquinones Catalysed by Schiff Base-Cu(II) Systems Immobilized on Polymer Support

Oxidation of 2,6-di-tert-butylphenols to Diphenoquinones Catalysed by Schiff Base-Cu(II) Systems Immobilized on Polymer Support

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

Radiation synthesis and application of a hydrogel based on acrylic acid and 2‐mercaptobenzimidazole

Contact Info

Product

Resources

About