METAL COMPLEXATION OF METHYLTHIOMETHYL-PENDANT POLYIMIDES

被引：10

作者：

CHIANG, WY

MEI, WP

机构：

[1] Department of Chemical Engineering, Tatung Institute of Technology, 40 Chungshan North Road

来源：

EUROPEAN POLYMER JOURNAL | 1993年 / 29卷 / 08期

关键词：

D O I：

10.1016/0014-3057(93)90307-2

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Some methylthiomethyl (MTM)-pendant polyimides were allowed to react with bivalent ions of Ni, Zn, Cd and Hg. The values for metal ion uptake for these polyimides followed the order Hg(II) > Cd(II) > Zn(II) > Ni(II). The selective chelating behaviour is discussed. Tentative structures for the complexed polyimides are proposed on the basis of i.r., SEM, TGA, inherent viscosity and adsorption capacity analyses. Upon complexation with metal ions, the solubilities of the polyimides decrease while the thermal stabilities remain unchanged. Investigation of the recycling possibility for Hg(II)-complexed PI-42 shows a recyclability of 90%.

引用

页码：1047 / 1051

页数：5

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[1]

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[2]

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[3]

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