کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5187164 1381122 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Conformational properties and Rouse dynamics of different dendrimer molecules
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Conformational properties and Rouse dynamics of different dendrimer molecules
چکیده انگلیسی

A coarse-grained model previously proposed to perform Monte Carlo simulations for several dendrimer molecules with different topologies and chemical compositions in solution is employed now to obtain structural properties, such as the bead density profile, the asphericity and the molecular scattering factor, or form factor. It is also used to study the Rouse dynamics, including Rouse spring forces consistent with the equilibrium averages of distances between connected frictional beads and hydrodynamic interactions (Rouse-Zimm scheme). With this approach, the Rouse relaxation times and the frequency-dependent viscoelastic modulus are calculated. Since hydrodynamic interactions are included in their preaveraged form, the effect of the preaveraging approximation is explicitly discussed. The influence of the different structural and topological dependence on the dendrimer static and dynamic properties is analysed and discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer - Volume 49, Issue 11, 27 May 2008, Pages 2762-2769
نویسندگان
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