Morphology and rheology of cocontinuous blends

被引：0
|
作者：
Barron, Carlos R. Lopez [1 ]
Macosko, Christopher W. [1 ]
机构：
[1] Univ Minnesota, Dept Chem Engn & Mat Sci, Minneapolis, MN 55455 USA
来源：
XVTH INTERNATIONAL CONGRESS ON RHEOLOGY - THE SOCIETY OF RHEOLOGY 80TH ANNUAL MEETING, PTS 1 AND 2 | 2008年 / 1027卷
关键词：
cocontinuous blends; rheology-mophology relationship; polystyrene-SAN blends;
D O I：
暂无
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The time evolution of the elastic modulus and the geometrical parameters of interfaces in a 50/50 PS/SAN cocontinuous blend are analyzed during annealing. The interfaces were tracked via LSCM (laser scanning confocal microscopy) coupled with 3D-image analysis. The evolution of G' and the geometrical variables can be described with power laws. Experiments reveal that interfaces relax faster (dQ/dt proportional to Q(2.4)) than predicted by the Doi-Ohta theory (dQ/dt proportional to Q(2)) [I]. Rheological behavior is a result of interfacial relaxation which includes interface expansion and curvature relaxation.
引用
收藏
页码：523 / 525
页数：3
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