Interactions of polymer-small molecule complex with cupric (II) ions in aqueous ethanol solution

被引：66

作者：

Acar, N ^{[1
]}

Tulun, T ^{[1
]}

机构：

[1] Istanbul Tech Univ, Dept Chem, Fac Sci & Letters, TR-80626 Istanbul, Turkey

来源：

EUROPEAN POLYMER JOURNAL | 2001年 / 37卷 / 08期

关键词：

polymer-metal complexes; poly(4-vinylpyridine); 4-amino benzoic acid; hydrogen bonding; stability constants; potentiometry;

D O I：

10.1016/S0014-3057(01)00026-X

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A complex was prepared by mixing ethanol solutions of poly(4-vinyl pyridine) (P4VP) and 4-amino benzoic acid. The complex (PEC) formation was studied by C-13 NMR, IR spectroscopy, differential scanning calorimetry and potentiometry. It was found that hydrogen bond is formed between P4VP and 4-amino benzoic acid. Dissolution was assessed visually at room temperature using dimethyl formamide, dimethyl sulfoxide, methanol, ethanol, ethanol-water. After dissolution of PEC in aqueous-ethanol (50% v/v) solution, the interaction of PEC with Cu2+ ions has been investigated by potentiometric titration. The average number of ligands coordinated with the central metal ion and the stability constants of PEC-metal complex were determined. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：1599 / 1605

页数：7

共 23 条

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