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Poly(N-vinylcaprolactam) gel/organic dye complexes as sensors for metal ions in aqueous salt solutionsстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: Nasimova I.R., Makhaeva E.E., Khokhlov A.R.
- Журнал: Journal of Applied Polymer Science
- Том: 81
- Номер: 13
- Год издания: 2001
- Издательство: John Wiley & Sons Inc.
- Местоположение издательства: United States
- Первая страница: 3238
- Последняя страница: 3243
- DOI: 10.1002/app.1778
- Аннотация: The complex formation of organogels based on poly(N-vinylcaprolactam) (PVCa) and organic dyes [5-(4-dimethylaminobenzylidene) rhodanine, alpha -nitroso-beta -naftol, and dithizone] and the properties of the complexes in salt aqueous solutions were studied. PVCa gels absorbed these dyes in organic media (ethanol and chloroform). Our main focus was the behavior of the gel/dye complex immersed in a salt aqueous solution if the dye was the chelating ligand for metal ions. The behavior of the PVCa/dithizone (Dz)/chloroform system was studied in AgNO3 aqueous solutions. The absorption spectra of gel/dye and gel/dye/metal ion systems were investigated. The results obtained indicate that Ag+ ions penetrate the gel phase and that the Dz/silver complexes are indeed formed inside the gel. The dependence of the optical density of the gel/dye/metal ion systems on the AgNO3 concentration was observed. (C) 2001 John Wiley & Sons, Inc.
- Добавил в систему: Насимова Ирина Рашитовна