Complexation of polyacrylates by Ca2+ ions. Time-resolved studies using attenuated total reflectance Fourier transform infrared dialysis spectroscopy
| Autor: | Ferenc Molnar, Fabiana Fantinel, Patrick Hübler, Jens Rieger |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Time Factors
Infrared Polymers Kinetics Analytical chemistry Spectral line chemistry.chemical_compound symbols.namesake Spectroscopy Fourier Transform Infrared Electrochemistry Organometallic Compounds General Materials Science Carboxylate Spectroscopy chemistry.chemical_classification Chemistry Water Surfaces and Interfaces Polymer Condensed Matter Physics Fourier transform Acrylates Attenuated total reflection symbols Calcium Dialysis Oxidation-Reduction |
| Zdroj: | Langmuir : the ACS journal of surfaces and colloids. 20(7) |
| ISSN: | 0743-7463 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|