کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10481716 933214 2005 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Flexible polyelectrolytes with monovalent salt
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات فیزیک ریاضی
پیش نمایش صفحه اول مقاله
Flexible polyelectrolytes with monovalent salt
چکیده انگلیسی
We present a model for describing flexible polyelectrolytes in a good solvent and in the presence of monovalent salt. The molecule composed by N monomers is characterized by the end-to-end distance Re=b(Z-1)γ and the number of associated counterions n. At high temperatures the polyelectrolyte behaves as a neutral polymer (γ=0.588). Decreasing the temperature, the macromolecule changes from this extended configuration (γ=0.588) to a stretched form (γ≈1). At even lower temperatures, above the Manning condensation threshold, the polyelectrolyte collapses (γ≈0.3). Our results show good agreement with simulations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica A: Statistical Mechanics and its Applications - Volume 357, Issue 1, 1 November 2005, Pages 142-149
نویسندگان
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