TRANSIENT SMALL-ANGLE NEUTRON-SCATTERING OF ALIGNED MICELLES

被引：7
|
作者：
KALUS, J [1 ]
LINDNER, P [1 ]
HOFFMANN, H [1 ]
IBEL, K [1 ]
MUNCH, C [1 ]
SANDER, J [1 ]
SCHMELZER, U [1 ]
SELBACH, J [1 ]
机构：
[1] INST MAX VON LAUE PAUL LANGEVIN,F-38042 GRENOBLE,FRANCE
来源：
PHYSICA B | 1991年 / 174卷 / 1-4期
关键词：
D O I：
10.1016/0921-4526(91)90599-A
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We have studied the microscopic basis of the hydrodynamic properties of aqueous micellar solutions with time-resolved neutron diffraction after the stepwise application of shear. We found that micelles formed by tetradecyltrimethyl-ammonium-salicylate ((C14H29N(CH3)3)+-(C6H4OHCOO)-; TTMA-Sal) show a shear-induced phase transition. For studying the hydrodynamic properties of micelles formed of cetylpyridiniumsalicylate ((C16H33NC5H5) - (C6H4OHCOO)-1; CPS) the shear rate was of sinusoidal shape GAMMA = GAMMA-0 sin(omega-t) with 0.09 s-1 < omega < 3.8 s-1. Indications for an unusual enhancement of the alignment was found for omega around 0.6 s-1 and for GAMMA-0 = 20 s-1.
引用
收藏
页码：164 / 169
页数：6
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