4.6 Article

Application of time-temperature superposition principle to polymer transition kinetics

期刊

JOURNAL OF APPLIED POLYMER SCIENCE
卷 99, 期 4, 页码 1767-1772

出版社

JOHN WILEY & SONS INC
DOI: 10.1002/app.22706

关键词

time-temperature superposition principle; transition kinetics; Williams-Landel-Ferry equation; poly(N-isopropylacrylamide); coil-globule transition

向作者/读者索取更多资源

The time-temperature equivalence equation is deduced simply in view of the transition kinetics of a polymer. The independent variables time and temperature are separated in the two sides of the resulting equation. Thus, a physical property of the polymer, which is temperature dependent, can be matched with the theoretical calculated curve from a supposed model of transition kinetics in which only time is involved as the independent variable. By comparing different models, one may judge which model is probably more correct. The procedure of data fitting is described. As an application example, the measured viscosity data at different temperatures for the coil-globule transition of poly(N-isopropylacrylamide) in aqueous solution is tested to judge its transition mechanism. A transition mechanism involving a two-stage reversible reaction fits the experimental data in a satisfactory way. (c) 2005 Wiley Periodicals, Inc.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据