Storage shear modulus of columnar structure formed in an immiscible polymer blend under electric fields

被引:10
|
作者
Aida, Kohei [1 ]
Na, Yang Ho [1 ]
Nagaya, Tomoyuki [2 ]
Orihara, Hiroshi [1 ]
机构
[1] Hokkaido Univ, Grad Sch Engn, Dept Appl Phys, Sapporo, Hokkaido 0608628, Japan
[2] Oita Univ, Fac Engn, Dept Elect & Elect Engn, Oita 8701192, Japan
来源
PHYSICAL REVIEW E | 2009年 / 80卷 / 04期
关键词
electric fields; liquid crystal polymers; polymer blends; shear modulus; solubility; surface tension; PATTERN-FORMATION; RESPONSES; EMULSION;
D O I
10.1103/PhysRevE.80.041807
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
Oscillatory measurements of a columnar structure were performed, which was formed in an immiscible polymer blend subjected to an electric field. The formation process was observed through a confocal scanning laser microscope and the structure for the measurements was confirmed to be well defined. The storage shear modulus at low frequencies increased with increasing the electric field. A linear relation was found between the storage shear modulus and the square of the electric field. The static modulus calculated on the basis of the Maxwell stress exerted on the interface and interfacial tension was in good agreement with the experimental result.
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页数:5
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