ADSORPTION OF DIVALENT METALLIC IONS BY POLYUREAS HAVING OLIGO(OXYETHYLENE) UNITS IN THE MAIN CHAIN.

被引：0

作者：

Iwabuchi, Susumu ^{[1
]}

Nakahira, Takayuki ^{[1
]}

Ando, Hideki ^{[1
]}

Inaba, Kazuhiro ^{[1
]}

Kojima, Kuniharu ^{[1
]}

机构：

[1] Chiba Univ, Chiba, Jpn, Chiba Univ, Chiba, Jpn

来源：

Polymer communications Guildford | 1986年 / 27卷 / 11期

关键词：

POLYMERS; -; Applications;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Polyureas having 1-5 oxyethylene units in the repeating monomer unit were synthesized from alpha , omega -diamino oligo(oxyethylene)s and hexamethylene diisocyanate and examined as adsorbents for divalent metallic ions. The adsorption of divalent metallic ions on to the polyureas showed a high selectivity for Hg**2** plus ion. The adsorption of Hg**2** plus ion was analyzed in terms of the Langmuir adsorption isotherm, thereby affording binding constant K and maximum adsorption w//s, which are substantially smaller than those of the corresponding polyamides. The repeated use of these polyureas as Hg**2** plus adsorbents was examined.

引用

页码：339 / 341

共 49 条

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