Thiocarbamoylation of Chlorosulfonated Polystyrene for Preparing Sorbents for Noble Metal Ions


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A new sorbent for noble metal ions, ensuring selective recovery of Au(III) ions from aqueous solutions containing interfering 3d metal ions, was suggested. The new functional derivative, poly(thiocarbamoylsulfostyre ne), was prepared by treatment of poly(chlorosulfostyrene) with thiourea. At the total degree of functionalization with sulfo and thiourea groups of up to 1.0, the degree of thiocarbamoylation can be controlled in the range from 10 to 75%. The composition and structure of the polymer-analogous transformation products were characterized by elemental analysis, Fourier IR spectroscopy, and thermal gravimetric analysis with IR identification of the decomposition products. Evaluation of the sorption activity of poly(thiocarbamoylsulfostyrene) has shown that the sorbent takes up Au(III) ions virtually quantitatively with high selectivity from an aqueous solution containing Co(II), Fe(III), Pd(II), and Ni(II) ions.

作者简介

D. Nesterov

Postovsky Institute of Organic Synthesis, Ural Branch

Email: pestov@ios.uran.ru
俄罗斯联邦, ul. Sof’i Kovalevskoi 22, Yekaterinburg, 620137

A. Mekhaev

Postovsky Institute of Organic Synthesis, Ural Branch

Email: pestov@ios.uran.ru
俄罗斯联邦, ul. Sof’i Kovalevskoi 22, Yekaterinburg, 620137

A. Pestov

Postovsky Institute of Organic Synthesis, Ural Branch; Yeltsin Ural Federal University

编辑信件的主要联系方式.
Email: pestov@ios.uran.ru
俄罗斯联邦, ul. Sof’i Kovalevskoi 22, Yekaterinburg, 620137; pr. Lenina 51, Yekaterinburg, 620075

S. Bratskaya

Institute of Chemistry, Far East Branch

Email: pestov@ios.uran.ru
俄罗斯联邦, pr. 100-letiya Vladivostoka 159, Vladivostok, 690022

V. Bakulev

Yeltsin Ural Federal University

Email: pestov@ios.uran.ru
俄罗斯联邦, pr. Lenina 51, Yekaterinburg, 620075

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