کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1555545 | 1513673 | 2007 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The effect of thermodynamic variables on polymer chain dynamics
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
شیمی مواد
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The effect of thermodynamic variables on polymer chain dynamics The effect of thermodynamic variables on polymer chain dynamics](/preview/png/1555545.png)
چکیده انگلیسی
The dynamics of polymer chains are examined in terms of their relationship to the local segmental relaxation process. Although the differing responses to changes in temperature and pressure cause breakdown of time-temperature and time-pressure superpositioning near the glass transition, a recently discovered scaling law can be applied to both relaxation modes. This scaling yields master curves of the global chain relaxation times and the local segmental relaxation times, which can be used to determine the dynamics at high pressure from ambient pressure measurements. The scaling relation also provides a measure of the steepness on the intermolecular potential in the vicinity of the distance of closest approach between segments.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Current Opinion in Solid State and Materials Science - Volume 11, Issues 3–4, June–August 2007, Pages 41–46
Journal: Current Opinion in Solid State and Materials Science - Volume 11, Issues 3–4, June–August 2007, Pages 41–46
نویسندگان
C.M. Roland,