Influence of pH on poly-(N-methylpyrrole) electrochemically synthesized in aqueous solution:: an infrared study

被引：23

作者：

Larraz, E ^{[1
]}

Redondo, MI ^{[1
]}

González-Tejera, MJ ^{[1
]}

Raso, MA ^{[1
]}

Tortajada, J ^{[1
]}

de la Blanca, ES ^{[1
]}

García, MV ^{[1
]}

机构：

[1] Univ Complutense Madrid, Fac Ciencias Quim, Dept Quim Fis 1, E-28040 Madrid, Spain

来源：

SYNTHETIC METALS | 2001年 / 122卷 / 02期

关键词：

poly-(N-methylpyrrole); electropolymerization; infrared spectra; pH influence;

D O I：

10.1016/S0379-6779(00)00564-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Structural changes induced by pH variations or by oxidation state in electrochemically synthesized poly-N-methylpyrrole have been studied by FTIR spectroscopy. With this aim, two different ways have been followed, in the first, polymer synthesis has been carried out in NaNO3 aqueous solutions at different pH values from acidic to neutral; in a second way a polymer film has been synthesized in a solution at pH = 4 and after, introduced in solutions of increasing pH and its infrared spectra analyzed. Evidence of protonation of already synthesized polymer is obtained although no new functional group is formed and only structural changes related with oxidation state are observed. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：413 / 423

页数：11

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