کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1696252 | 1011893 | 2009 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Montmorillonite–polycation multilayers incorporated in polyacrylamide
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
ژئوشیمی و پترولوژی
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چکیده انگلیسی
A two-stage synthesis has been developed for the first time to obtain montmorillonite–poly(1-methyl-4-vinylpyridinium) multilayers incorporated in polyacrylamide gels. Firstly, hexadecylpyridinium montmorillonite was entrapped in the polyacrylamide gel during polymerization. In the second stage the cationic surfactant was removed and replaced by alkylated poly(4-vinylpyridine). The products in each stage of preparation were characterized by small-angle X-ray scattering (SAXS). SAXS revealed highly ordered multilayers of polycation–montmorillonite particles in the gel. This structure could not be obtained by mixing the solution of the polycation salt with the aqueous dispersion of montmorillonite or with the dispersion entrapped in the gel.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Clay Science - Volume 46, Issue 1, September 2009, Pages 88–94
Journal: Applied Clay Science - Volume 46, Issue 1, September 2009, Pages 88–94
نویسندگان
S.G. Starodubtsev, E.K. Lavrentyeva, E.V. Shtykova, K.A. Dembo, V.V. Volkov,