Shape and Size of Highly Concentrated Micelles in CTAB/NaSal Solutions by Small Angle Neutron Scattering (SANS)

被引：91

作者：

Das, Narayan Ch. ^{[1
]}

Cao, Hu ^{[1
]}

Kaiser, Helmut ^{[1
]}

Warren, Garfield T. ^{[4
]}

Gladden, Joseph R. ^{[2
,3
]}

Sokol, Paul E. ^{[1
,4
]}

机构：

[1] Indiana Univ, LENS, Ctr Explorat Energy & Matter, Bloomington, IN 47408 USA

[2] Univ Mississippi, Dept Phys & Astron, University, MS 38677 USA

[3] Univ Mississippi, Natl Ctr Phys Acoust, University, MS 38677 USA

[4] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA

来源：

LANGMUIR | 2012年 / 28卷 / 33期

基金：

美国国家科学基金会;

关键词：

POLYMER-LIKE MICELLES; WORMLIKE MICELLES; CETYLTRIMETHYLAMMONIUM BROMIDE; ALKYLPYRIDINIUM SURFACTANTS; CATIONIC SURFACTANTS; SEMIDILUTE SOLUTIONS; AQUEOUS-SOLUTIONS; VISCOSITY; PHASE; WATER;

D O I：

10.1021/la2022598

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Highly concentrated micelles in CTAB/NaSal solutions with a fixed salt/surfactant ratio of 0.6 have been studied using Small Angle Neutron Scattering (SANS) as a function of temperature and concentration. A worm-like chain model analysis of the SANS data using a combination of a cylindrical form factors for the polydisperse micellar length, circular cross-sectional radius with Gaussian polydispersity, and the structure factor based on a random phase approximation (RPA) suggests that these micelle solutions have a worm-like micellar structure that is independent of the concentration and temperature. The size of the micelle decreases monotonically with increasing temperature and increases with concentration. These observations indicate that large micelles are formed at low temperature and begin to break up to form smaller micelles with increasing temperature.

引用

页码：11962 / 11968

页数：7

共 50 条

[21] Phase Locked Modulated (PLM) Small Angle Neutron Scattering (SANS)
Bleuel, M.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2019, 927 : 184 - 186
[22] SMALL-ANGLE NEUTRON-SCATTERING STUDIES OF CHLORPROMAZINE MICELLES IN AQUEOUS-SOLUTIONS
PEREZVILLAR, V
VAZQUEZIGLESIAS, ME
DEGEYER, A
JOURNAL OF PHYSICAL CHEMISTRY, 1993, 97 (19): : 5149 - 5154
[23] SMALL-ANGLE NEUTRON-SCATTERING MEASUREMENTS ON IONIC DETERGENT SOLUTIONS WITH RODLIKE MICELLES
KALUS, J
HOFFMANN, H
REIZLEIN, K
ULBRICHT, W
BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1982, 86 (01): : 37 - 42
[24] Small Angle Neutron Scattering to Study Ionic Micelles.
Cabos, C.
Delord, P.
Journal de Physique (Paris), Lettres, 1977, 38 (17):
[25] Size and shape of detergent micelles determined by small-angle x-ray scattering
Lipfert, Jan
Columbus, Linda
Chu, Vincent B.
Lesley, Scott A.
Doniach, Sebastian
JOURNAL OF PHYSICAL CHEMISTRY B, 2007, 111 (43): : 12427 - 12438
[26] SMALL-ANGLE NEUTRON-SCATTERING STUDY OF CONCENTRATED NONIONIC-AMPHIPHILE SOLUTIONS
DEGIORGIO, V
CORTI, M
PIAZZA, R
CANTU, L
RENNIE, AR
COLLOID AND POLYMER SCIENCE, 1991, 269 (05) : 501 - 505
[27] Small angle neutron scattering from dilute and concentrated DAB(PA)x dendrimer solutions
Topp, A
Bauer, BJ
Amis, EJ
Scherrenberg, R
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1997, 214 : 37 - PMSE
[28] Exploring shear alignment of concentrated wormlike micelles using rheology coupled with small-angle neutron scattering
King, Joshua P.
Butler, Calum S. G.
Prescott, Stuart W.
Sokolova, Anna V.
de Campo, Liliana
Williams, Ashley P.
Tabor, Rico F.
PHYSICS OF FLUIDS, 2022, 34 (08)
[29] Multiscale micro-architecture of pore space in rocks: size, shape, deformation and accessibility determined by small-angle neutron scattering (SANS)
Radlinski, Andrzej P.
Blach, Tomasz
EUROPEAN PHYSICAL JOURNAL E, 2023, 46 (09):
[30] Multiscale micro-architecture of pore space in rocks: size, shape, deformation and accessibility determined by small-angle neutron scattering (SANS)
Andrzej P. Radlinski
Tomasz Blach
The European Physical Journal E, 2023, 46

← 1 2 3 4 5 →