کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5413607 | 1506632 | 2007 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The hydrophobic hydration in aqueous solutions of allyl-substituted ammonium salts
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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چکیده انگلیسی
The complex dielectric permittivity for the series of aqueous allyl-substituted ammonium salt solutions is investigated in microwave range (13-25 GHz) in a wide range of salt concentrations. The measurements were made at 298 K for diallylammonium and diallylmethylammonium trifluoroacetates and in the temperature interval 288-308 K for diallyldimethylammonium chloride. The values of dielectric constant εs and parameters of the dielectric relaxation process were calculated. The increase of relaxation time Ï in comparison with pure water is observed for all investigated solutions. It indicates the decrease of orientation mobility of water molecules in the H-bond network upon action of allyl-substituted ammonium ions connected with hydrophobic hydration of these ions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Liquids - Volumes 131â132, 15 March 2007, Pages 101-104
Journal: Journal of Molecular Liquids - Volumes 131â132, 15 March 2007, Pages 101-104
نویسندگان
A. Lileev, D. Loginova, A. Lyashchenko, L. Timofeeva, N. Kleshcheva,