TUMBLING BEHAVIOR OF NEMATIC WORM-LIKE MICELLES UNDER SHEAR-FLOW

被引：20

作者：

BERRET, JF ^{[1
]}

ROUX, DC ^{[1
]}

PORTE, G ^{[1
]}

LINDNER, P ^{[1
]}

机构：

[1] INST MAX VON LAUE PAUL LANGEVIN,F-38042 GRENOBLE 9,FRANCE

来源：

EUROPHYSICS LETTERS | 1995年 / 32卷 / 02期

关键词：

D O I：

10.1209/0295-5075/32/2/008

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The report on the tumbling instability occurring in nematic solutions of worm-like micelles made of surfactant and subjected to low shearing fields (gamma similar to 1 s(-1)). Results obtained by theology and small-angle neutron scattering under shear are in good agreement with the mesoscopic domain theory developed recently for textured materials (such as liquid-crystalline polymers). When a stationary shearing is applied to these solutions, the tumbling results in oscillations in the shear stress responses, which in addition exhibit the scaling laws usually observed in liquid-crystalline materials. The neutron patterns on the other hand reveal that the average texture orientation increases after cessation of a shearing in the tumbling regime.

引用

页码：137 / 142

页数：6

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