کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9575351 | 1504346 | 2005 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Application of thermodynamic models to study micellar properties of sodium perfluoroalkyl carboxylates in aqueous solutions
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Application of thermodynamic models to study micellar properties of sodium perfluoroalkyl carboxylates in aqueous solutions Application of thermodynamic models to study micellar properties of sodium perfluoroalkyl carboxylates in aqueous solutions](/preview/png/9575351.png)
چکیده انگلیسی
Sodium perfluoroalkyl carboxylates (CnFONa) with n = 6, 9, 10 have been studied by conductivity measurements at different temperatures. The Krafft point was determined for C9FONa and C10FONa at the highest concentration studied by measuring the temperature dependence of the specific conductivity. The critical micelle concentration (cmc) and the ionization degree of the micelle (β) were estimated from conductivity vs. molality plots at different temperatures. Using these data and previous results on temperature dependence of cmc and β of sodium perfluoroheptanoate and perfluorooctanoate, different models were applied to obtain the thermodynamic properties of micellization. The results are discussed in terms of alkyl chain length.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Physics - Volume 313, Issues 1â3, 27 June 2005, Pages 245-259
Journal: Chemical Physics - Volume 313, Issues 1â3, 27 June 2005, Pages 245-259
نویسندگان
Alfredo González-Pérez, Juan M. Ruso, MarÃa J. Romero, Elena Blanco, Gerardo Prieto, Felix Sarmiento,