SANS Study of Clustering of Charged Micelles in Aqueous Electrolyte Solution

被引:0
作者
Chinchalikar, A. J. [1 ]
Aswal, V. K. [1 ]
Kohlbrecher, J. [2 ,3 ]
Wagh, A. G. [1 ]
机构
[1] Bhabha Atom Res Ctr, Div Solid State Phys, Bombay 400085, Maharashtra, India
[2] ETH, Lab Neutron Scattering, CH-5232 Villigen, Switzerland
[3] Paul Scherrer Inst, CH-5232 Villigen, Switzerland
来源
INTERNATIONAL CONFERENCE ON PHYSICS OF EMERGING FUNCTIONAL MATERIALS (PEFM-2010) | 2010年 / 1313卷
关键词
Self-assembly; micelles; particle clustering; small-angle neutron scattering; CLOUD POINT;
D O I
暂无
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Small-angle neutron scattering studies have been carried out for the charged micellar system of 50 mM sodium dodcyle sulphate (SDS) and 50 mM tetrabutylammonium bromide (TBAB) in presence of salts. The system undergoes clouding (turbid) at 0.75 M NaCl. We show that clouding takes place as a result of clustering of micelles and the required attraction is modeled by the Baxter's sticky hard sphere potential. The clouding is also examined for different salts and is governed by the counterion condensation and dehydration properties of salts ions.
引用
收藏
页码:180 / +
页数:2
相关论文
共 10 条
[1]  
[Anonymous], 1992, INTERMOLECULAR SURFA
[2]   Clouding in charged micelles as studied by SANS [J].
Aswal, VK ;
Kohlbrecher, J .
CHEMICAL PHYSICS LETTERS, 2006, 424 (1-3) :91-96
[3]  
Aswal VK, 2000, CURR SCI INDIA, V79, P947
[4]   Cloud point of aqueous solutions of tetrabutylammonium dodecyl sulfate is a function of the concentration of counterions in the aqueous phase [J].
Bales, BL ;
Zana, R .
LANGMUIR, 2004, 20 (05) :1579-1581
[5]   THE STRUCTURE OF MICELLES AND MICROEMULSIONS [J].
CHEVALIER, Y ;
ZEMB, T .
REPORTS ON PROGRESS IN PHYSICS, 1990, 53 (03) :279-371
[6]   AN ANALYTIC STRUCTURE FACTOR FOR MACROION SOLUTIONS [J].
HAYTER, JB ;
PENFOLD, J .
MOLECULAR PHYSICS, 1981, 42 (01) :109-118
[7]   The new SANS instrument at the Swiss spallation source SINQ [J].
Kohlbrecher, J ;
Wagner, W .
JOURNAL OF APPLIED CRYSTALLOGRAPHY, 2000, 33 (01) :804-806
[8]   Cloud point phenomenon in ionic micellar solutions: A SANS study [J].
Kumar, S ;
Aswal, VK ;
Naqvi, AZ ;
Goyal, PS ;
Kabir-ud-Din .
LANGMUIR, 2001, 17 (09) :2549-2551
[9]   A NEW INTERPRETATION OF THE STICKY HARD-SPHERE MODEL [J].
MENON, SVG ;
MANOHAR, C ;
RAO, KS .
JOURNAL OF CHEMICAL PHYSICS, 1991, 95 (12) :9186-9190
[10]  
POROD G., 1951, KOLLOID Z, V83, P124