Chemical modification of cross-linked resin based on acrylonitrile for anchoring metal ions

被引：3

作者：

De Santa Maria, Luiz Claudio ^{[1
]}

Amorim, Marcia C.V ^{[2
]}

Aguiar, Mônica R.M.P ^{[1
]}

Guimarães, Pedro Ivo C ^{[1
]}

Costa, Marcos A.S ^{[1
]}

De Aguiar, Alcino Palermo ^{[2
]}

Rezende, Paulo Roberto ^{[3
]}

De Carvalho, Marcelo Souza ^{[3
]}

Barbosa, Flávia G ^{[1
]}

Andrade, Juliano M ^{[1
]}

Ribeiro, Roberto C.C ^{[1
]}

机构：

[1] Grupo De Polímeros (GPol), Instituto De Química, Universidade Do Estado Do Rio De Janeiro, 524 -- Pavilhao Haroldo Lisboa Cunha, Rio de Janeiro, CEP 20559-900, Brazil

[2] Departamento De Engenharia Química, Instituto Militar De Engenharia, Praça General Tibúrcio, 80 Rio de Janeiro, CEP 22290-270, Brazil

[3] Instituto De Engenharia Nuclear, CNEN/RJ, C. Postal 68550, CEP 21945-970 Rio de Janeiro, Brazil

来源：

Reactive and Functional Polymers | 2001年 / 49卷 / 02期

关键词：

Adsorption - Chelation - Chemical modification - Copolymerization - Crosslinking - Electron microscopy - Fourier transform infrared spectroscopy - Optical microscopy - Porous materials - Solutions;

D O I：

10.1016/S1381-5148(01)00068-2

中图分类号：

学科分类号：

摘要：

Network resin based on acrylonitrile has been chemically modified through different reactions to obtain different chelating groups. The beads of resin were synthesized by aqueous suspension copolymerization of acrylonitrile (AN) and divinylbenzene (DVB). The chemical modifications of these beads' cyano groups were carried out by reaction with hydroxylamine, hydrazine and ethanolamine producing amidoxime, amidrazone and oxazoline groups, respectively. The copolymer and modified resins were characterized by apparent density, surface area, average pore diameter, elemental analysis (CHN), FTIR and optical and electronic microscopies. Qualitative experiments of adsorption were conducted to evaluate the resins (modified and unmodified) on fixing Hg(II), Cd(II), Cu(II), Zn(II), Cd(II), Co(II), Ni(II) and Pb(II) from aqueous solution using batch extractions. Based on the results obtained, it was concluded that it is possible to modify chemically a resin containing cyano groups by different routes and to use thes e resins as a very low cost effective sorbent for metal ions. © 2001 Elsevier Science B.V. All rights reserved.

引用

页码：133 / 143