Kinetics of alignment and decay in a highly entangled transient threadlike micellar network studied by small-angle neutron scattering

被引：33
作者：
Butler, PD
Magid, LJ
Hamilton, WA
Hayter, JB
Hammouda, B
Kreke, PJ
机构：
[1] OAK RIDGE NATL LAB,DIV SOLID STATE,OAK RIDGE,TN 37831
[2] NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899
来源：
JOURNAL OF PHYSICAL CHEMISTRY | 1996年 / 100卷 / 02期
关键词：
RODLIKE MICELLES; SURFACTANT SOLUTIONS; SHEAR-FLOW; BEHAVIOR;
D O I：
10.1021/jp9522977
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We report on a study of the kinetics of alignment and decay of alignment, using small-angle neutron scattering (SANS), of a complex fluid under Couette shear containing a highly entangled network of threadlike micelles. The time scales of alignment revealed are dominated by the collective properties of the network rather than the individual micellar segments. This results in rates orders of magnitude slower than any previously observed in similar systems as well as in the first observation of an alignment proceeding in two stages.
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页码：442 / 445
页数：4
相关论文
共 22 条
[1]  
BUTLER PD, 1994, ACS S SERIES, V283
[2]   NEW ASPECTS OF THE BEHAVIOR OF ALKYLTRIMETHYLAMMONIUM BROMIDE MICELLES - LIGHT-SCATTERING AND VISCOSIMETRIC STUDIES [J].
CANDAU, SJ ;
HIRSCH, E ;
ZANA, R .
JOURNAL DE PHYSIQUE, 1984, 45 (07) :1263-1270
[3]  
CARVER M, IN PRESS LANGMUIR
[4]   STATICS AND DYNAMICS OF WORM-LIKE SURFACTANT MICELLES [J].
CATES, ME ;
CANDAU, SJ .
JOURNAL OF PHYSICS-CONDENSED MATTER, 1990, 2 (33) :6869-6892
[5]  
de Gennes PG, 1979, SCALING CONCEPTS POL
[6]   STRESS-RELAXATION IN LIVING POLYMERS - RESULTS FROM A POISSON RENEWAL MODEL [J].
GRANEK, R ;
CATES, ME .
JOURNAL OF CHEMICAL PHYSICS, 1992, 96 (06) :4758-4767
[7]   SHEAR-INDUCED HEXAGONAL ORDERING OBSERVED IN AN IONIC VISCOELASTIC FLUID IN FLOW PAST A SURFACE [J].
HAMILTON, WA ;
BUTLER, PD ;
BAKER, SM ;
SMITH, GS ;
HAYTER, JB ;
MAGID, LJ ;
PYNN, R .
PHYSICAL REVIEW LETTERS, 1994, 72 (14) :2219-2222
[8]   SMALL-ANGLE NEUTRON-SCATTERING AT THE NATIONAL-INSTITUTE-OF-STANDARDS-AND-TECHNOLOGY [J].
HAMMOUDA, B ;
KRUEGER, S ;
GLINKA, CJ .
JOURNAL OF RESEARCH OF THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY, 1993, 98 (01) :31-46
[9]   USE OF VISCOUS SHEAR ALIGNMENT TO STUDY ANISOTROPIC MICELLAR STRUCTURE BY SMALL-ANGLE NEUTRON-SCATTERING [J].
HAYTER, JB ;
PENFOLD, J .
JOURNAL OF PHYSICAL CHEMISTRY, 1984, 88 (20) :4589-4593
[10]   INFLUENCE OF IONIC SURFACTANTS ON THE VISCOELASTIC PROPERTIES OF ZWITTERIONIC SURFACTANT SOLUTIONS [J].
HOFFMANN, H ;
RAUSCHER, A ;
GRADZIELSKI, M ;
SCHULZ, SF .
LANGMUIR, 1992, 8 (09) :2140-2146
123