Image analysis of the spatial distribution of paramagnetic Pr^3+^ions in a polymer gel by a ^1^H-chemical shift NMR imaging method
| Autor: | Isao Ando, Shigeki Kuroki, Akitsugu Sasaki, Yoshio Hotta, Yuji Yamane, Satomi Yokota, Hideaki Kimura |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2004 |
| Předmět: |
chemistry.chemical_classification
Polymers and Plastics Chemistry Praseodymium Metal ions in aqueous solution Organic Chemistry Analytical chemistry chemistry.chemical_element Polymer Condensed Matter Physics Spatial distribution Ion Paramagnetism chemistry.chemical_compound Methacrylic acid Materials Chemistry cardiovascular diseases Polymer gel |
| Zdroj: | Macromolecular Symposia. 207:105-109 |
| ISSN: | 1022-1360 |
| Popis: | 1H-chemical shift NMR imaging patterns of a poly(methacrylic acid) gel containing water with paramagnetic praseodymium ions(Pr3+) were successfully observed, in order to elucidate spatial distribution of Pr3+ ions in the gel. The 1H chemical shift of water associated with Pr3+ ions in the gel moves largely downfield. By analyzing these experimental results, the immersion process of Pr3+ ions into the network of the polymer gel was spatially clarified. Further, it is shown that the chemical shift NMR imaging method is a useful means for determining the spatial distribution of paramagnetic metal ions in polymer gels. |
| Databáze: | OpenAIRE |
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