کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5411509 1506576 2014 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Spectrophotometric study of the interaction of toluidine blue with poly (ammonium acrylate)
ترجمه فارسی عنوان
مطالعه اسپکتروفتومتری از تعامل تولویدین آبی با پلی (آمونیوم اکریلات)
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
چکیده انگلیسی
The aim of this work is to study the interaction between Toluidine Blue (TB), a cationic dye, and an anionic polyelectrolyte, poly (ammonium acrylate) (PANH4). The UV-Visible spectroscopy study shows that addition of increasing amounts of poly (ammonium acrylate) induces the formation of a metachromatic complex. The stoichiometry of TB-PANH4 complex evaluated by the molar ratio method is 1:1 and the large hypsochromic absorption shift (73 nm) obtained is attributed to dye H-aggregates. The effects of sodium chloride concentration, pH and Cetyl pyridinium chloride (CPC) concentration, on metachromasy have also been studied. Thermodynamic parameters of interaction ΔG, ΔH and ΔS at different temperatures have been evaluated to determine the stability constant of the complex.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Liquids - Volume 194, June 2014, Pages 110-114
نویسندگان
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