Temperature dependence of the chemical potential of tetradecyldimethylalninoxide micelles in D2O -: A SANS study

被引：10

作者：

Gorski, N

Kalus, J

Meier, G

Schwahn, D

机构：

[1] Univ Bayreuth, D-95440 Bayreuth, Germany

[2] Joint Inst Nucl Res, Frank Lab Neutron Phys, Dubna 141980, Moscow Region, Russia

[3] Max Planck Inst Polymer Res, D-55021 Mainz, Germany

[4] Forschungszentrum Julich, Inst Festkorperphys, D-52425 Julich, Germany

来源：

LANGMUIR | 1999年 / 15卷 / 10期

关键词：

D O I：

10.1021/la981592q

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

By means of small-angle neutron-scattering (SANS) experiments, the dependence on concentration and temperature of the mean aggregation number [N] of rodlike tetradecyldimethylaminoxide (TDMAO) micelles in D2O was determined for 278 K < T < 370 K and for 2.69 mM/L < c < 118 mM/L. By an analysis via the so-called ladder model, the difference of the chemical potentials for a monomer located in the end cap and one in the cylindrical part of the spherocylindrical micelles, respectively, was extracted. This difference depends on the concentration c of TDMAO and strongly on temperature T.

引用

页码：3476 / 3482

页数：7

共 33 条

[1] PHENOMENOLOGICAL THEORY OF EQUILIBRIUM THERMODYNAMIC PROPERTIES AND PHASE-SEPARATION OF MICELLAR SOLUTIONS [J].