کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
595929 | 1454029 | 2009 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Colloidal particle aggregates induced by particle surface charge heterogeneity
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Interaction of charged particles, induced by adding an oppositely charged polyion, gives rise to intriguing aggregation phenomena. The presence of short-range interactions in competition with electrostatic repulsions results, in an interval of concentrations around the inversion point, in the formations of long-lived clusters of polyelectrolyte-decorated particles. We will show that the whole aggregation scenario can be justified as due to an heterogeneous charge distribution at the particle surface, as a consequence of the correlated polyion adsorption, on the basis of a recently model proposed by D. Velegol, P. Thwar, Langmuir 17 (2001) 7687–7693.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 343, Issues 1–3, 10 July 2009, Pages 34–42
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 343, Issues 1–3, 10 July 2009, Pages 34–42
نویسندگان
S. Sennato, D. Truzzolillo, F. Bordi, F. Sciortino, C. Cametti,