Complexation of polyacrylates by Ca2+ ions.: Time-resolved studies using attenuated total reflectance Fourier transform infrared dialysis spectroscopy

被引：56

作者：

Fantinel, F ^{[1
]}

Rieger, J ^{[1
]}

Molnar, F ^{[1
]}

Hübler, P ^{[1
]}

机构：

[1] BASF AG, Polymer Phys, D-67056 Ludwigshafen, Germany

来源：

LANGMUIR | 2004年 / 20卷 / 07期

关键词：

D O I：

10.1021/la030354e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The attenuated total reflectance Fourier transform infrared dialysis technique is introduced for the time-resolved investigation of the binding processes of Ca2+ to polyacrylates dissolved in water. We observed transient formation of intermediates in water with various types of coordination of the carboxylate group to Ca2+ throughout the complexation steps. Time-resolved changes in the spectra were analyzed with principal component analysis, from which the spectral species were obtained as well as their formation kinetics. We propose a model for the mechanisms of Ca2+ coordination to polyacrylates. The polymer chain length plays an important role in Ca2+ binding.

引用

页码：2539 / 2542

页数：4

共 35 条

[1] ACETATES AND ACETATO-COMPLEXES .2. SPECTROSCOPIC STUDIES [J].