کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5186602 1381108 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The dynamic response of isolated polybutadiene chains undergoing thermal retraction from extended conformations
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
The dynamic response of isolated polybutadiene chains undergoing thermal retraction from extended conformations
چکیده انگلیسی

All-atom molecular dynamic simulations were performed on isolated polybutadiene chains to study the retraction velocity of a free end of an idealized network chain from extended conformations due to thermal collisions. We compare the snap-back velocity calculated from these simulations with experimental measurements on bulk rubber samples. Over a range of chain lengths, extension ratios and temperatures, we find that the average retraction velocity of a free end seen in the simulations is about two orders of magnitude less than the experimental value.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer - Volume 49, Issue 26, 8 December 2008, Pages 5714-5718
نویسندگان
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