کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
978714 | 933300 | 2006 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Kinetics of microphase separation of ramified polymer network of arbitrary topology
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
ریاضیات
فیزیک ریاضی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The aim of the present work is to quantitatively study the early kinetics of the microphase separation in ramified polymer blends, made of two incompatible polymers A and B, dissolved in a common good solvent. Use is made of an extended blob model used previously for the investigation of the static properties of such a transition. We are interested in the variation of the relaxation rate, versus the wave number q, the topological factor κG, and the rigidity constant of the system, in the vicinity of the spinodal temperature. We first show that kinetics is entirely dominated by local motions, which are of Rouse type. Slow motions are absent because of the permanent presence of crosslinks. The mean conclusion is that the presence of the solvent necessitates a relaxation rates less important as compared as the mixture without solvent [Ghaouar et al., Eur. Phys. J. E 16 (2005) 409].
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica A: Statistical Mechanics and its Applications - Volume 363, Issue 2, 1 May 2006, Pages 334-342
Journal: Physica A: Statistical Mechanics and its Applications - Volume 363, Issue 2, 1 May 2006, Pages 334-342
نویسندگان
N. Ghaouar, A. Gharbi,