کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9588816 | 1393517 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Study of inclusion complex formation between a homologous series of n-alkyltrimethylammonium bromides and β-cyclodextrin, using conductometric technique
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The behaviour of the inclusion complex based on a homologous series of n-alkyltrimethylammonium bromides and β-cyclodextrin (β-CD) were studied using conductometric technique. Association constants have been determined for S(CD) and S(CD)2 complexes. It has been found that DETAB and DOTAB form only the 1:1 complexes, while TTAB forms 1:1 1:2 TTAB/CD complexes. The results are explained in terms of the difference in chain length of surfactants and dimensions of the β-CD cavity. The experiments were carried out at different temperatures. The association constant values are used for evaluation of thermodynamic parameters of complexation, such as ÎG°, ÎH° and ÎS°.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Liquids - Volume 116, Issue 1, 15 January 2005, Pages 37-41
Journal: Journal of Molecular Liquids - Volume 116, Issue 1, 15 January 2005, Pages 37-41
نویسندگان
Amir Abbas Rafati, Ahmad Bagheri, Hussein Iloukhani, Mortaza Zarinehzad,