Article

Scattering theory for threadlike micellar solutions.

Department of Macromolecular Science, Osaka University, Toyonaka, Osaka 560-0043, Japan.
Langmuir (impact factor: 4.19). 03/2004; 20(4):1095-9. pp.1095-9
Source: PubMed

ABSTRACT Association-dissociation equilibria and the static scattering function were formulated using precise thermodynamic functions for nonionic surfactant solutions including long, stiff, threadlike micelles. The present theory is applicable for micellar solutions with the surfactant concentration much higher than the critical micelle concentration and containing highly growing threadlike micelles. The scattering function formulated was compared with experimental light scattering data for aqueous solutions of a nonionic surfactant, penta(oxyethylene glycol) n-decyl ether (C12E5), at different surfactant concentrations and also temperatures.

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Keywords

critical micelle concentration
 
different surfactant concentrations
 
experimental light scattering data
 
nonionic surfactant
 
nonionic surfactant solutions
 
penta(oxyethylene glycol)
 
precise thermodynamic functions
 
present theory
 
scattering function
 
static scattering function
 
surfactant concentration
 
threadlike micelles
 

Takahiro Sato