Heavy-Metal Ion Extracting Agents Based on Crosslinked Polyethylenimine

New porous polymer materials based on crosslinked highly branched polyethylenimine (PEI) are synthesized. Epichlorohydrin, diethylene glycol diglycidyl ether, and chloroacetic acid diesters with ethylene glycol, diethylene glycol, triethylene glycol, and polyethylene glycol-400 are used as crosslink...

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Bibliographic Details
Published in:Russian Journal of Physical Chemistry A 2019-07, Vol.93 (7), p.1382-1388
Main Authors: Morozov, A. S., Bessonov, I. V., Davankov, V. A.
Format: Article
Language:English
Subjects:
Antifreeze solutions
Buffer solutions
Chemistry
Chemistry and Materials Science
Chloroacetic acid
Coordination compounds
Copper compounds
Crosslinking
Diesters
Epichlorohydrin
Ethylene glycol
Metal ions
Physical Chemistry
Physical Chemistry of Surface Phenomena
Polyethylene glycol
Polyethyleneimine
Porous materials
Price increases
Triethylene glycol
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Summary:New porous polymer materials based on crosslinked highly branched polyethylenimine (PEI) are synthesized. Epichlorohydrin, diethylene glycol diglycidyl ether, and chloroacetic acid diesters with ethylene glycol, diethylene glycol, triethylene glycol, and polyethylene glycol-400 are used as crosslinking agents. The PEI/crosslinking agent ratio and means of polymerization, which substantially affect the water uptake of the products, are varied. It is shown that these materials exhibit high sorption activity with respect to metal cations that form complexes with amino groups of PEI: up to 172, 116, and 106 mg/g for copper(II), cobalt(II), and nickel(II), respectively, in an acetate buffer solution at a pH 5.
ISSN:0036-0244
1531-863X
DOI:10.1134/S0036024419070197