Determination of both the binodal and the spinodal curves in polymer blends by shear rheology

被引：51
|
作者：
Kapnistos, M [1 ]
Vlassopoulos, D [1 ]
Anastasiadis, SH [1 ]
机构：
[1] UNIV CRETE,DEPT PHYS,GR-71110 IRAKLION,CRETE,GREECE
来源：
EUROPHYSICS LETTERS | 1996年 / 34卷 / 07期
关键词：
D O I：
10.1209/epl/i1996-00488-0
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The thermorheological complexity at low frequencies in polymer blends near macrophase separation is quantitatively accounted for. The behaviour of both storage, G', and loss, G '', moduli at low frequencies as the temperature, T, approaches phase separation is due to the critical concentration fluctuations in the one-phase region. The temperature at maximum slope of the G' vs. T dependence at low frequencies is identified with the cloud point curve, whereas a plot of [(G '')(2)/(G'T)](2/3) vs. 1/T leads to the identification of the spinodal temperature.
引用
收藏
页码：513 / 518
页数：6
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