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Title: Effect of alcohol on the properties of micellar systems. Part 1. Critical micellization concentration, micelle molecular weight and ionization degree

Abstract

Additions of alcohols of medium chain length (butanol to hexanol) to micellar solutions result in a decrease of critical micelle concentration and micelle molecular weight, and an increase of the micelle ionization degree. Moreover, the micelle molecular weight (or surfactant aggregation number) at a given alcohol concentration increases with the surfactant concentration and may reach values larger than in the absence of alcohol. Striking differences have been found in the changes of molecular weight of TTAB micelles in H/sub 2/O-pentanol mixtures in the presence of 0.1 M KBr and in the absence of salt. These various results have been explained by considering the effect of the micelle solubilized alcohol on the micelle surface charge density and on the dielectric constant of the palisade layer. 48 references.

Authors:
; ; ;
Publication Date:
OSTI Identifier:
6827443
Resource Type:
Journal Article
Journal Name:
J. Colloid Interface Sci.; (United States)
Additional Journal Information:
Journal Volume: 80:1
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; MICELLAR SYSTEMS; CHEMICAL PROPERTIES; ALCOHOLS; CATALYTIC EFFECTS; DIELECTRIC PROPERTIES; IONIZATION; MOLECULAR WEIGHT; POTASSIUM BROMIDES; QUANTITY RATIO; SURFACE POTENTIAL; SURFACTANTS; ALKALI METAL COMPOUNDS; BROMIDES; BROMINE COMPOUNDS; ELECTRICAL PROPERTIES; HALIDES; HALOGEN COMPOUNDS; HYDROXY COMPOUNDS; ORGANIC COMPOUNDS; PHYSICAL PROPERTIES; POTASSIUM COMPOUNDS; POTENTIALS; 400301* - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)

Citation Formats

Zana, R, Yiv, S, Strazielle, C, and Lianos, P. Effect of alcohol on the properties of micellar systems. Part 1. Critical micellization concentration, micelle molecular weight and ionization degree. United States: N. p., 1981. Web. doi:10.1016/0021-9797(81)90177-6.
Zana, R, Yiv, S, Strazielle, C, & Lianos, P. Effect of alcohol on the properties of micellar systems. Part 1. Critical micellization concentration, micelle molecular weight and ionization degree. United States. https://doi.org/10.1016/0021-9797(81)90177-6
Zana, R, Yiv, S, Strazielle, C, and Lianos, P. 1981. "Effect of alcohol on the properties of micellar systems. Part 1. Critical micellization concentration, micelle molecular weight and ionization degree". United States. https://doi.org/10.1016/0021-9797(81)90177-6.
@article{osti_6827443,
title = {Effect of alcohol on the properties of micellar systems. Part 1. Critical micellization concentration, micelle molecular weight and ionization degree},
author = {Zana, R and Yiv, S and Strazielle, C and Lianos, P},
abstractNote = {Additions of alcohols of medium chain length (butanol to hexanol) to micellar solutions result in a decrease of critical micelle concentration and micelle molecular weight, and an increase of the micelle ionization degree. Moreover, the micelle molecular weight (or surfactant aggregation number) at a given alcohol concentration increases with the surfactant concentration and may reach values larger than in the absence of alcohol. Striking differences have been found in the changes of molecular weight of TTAB micelles in H/sub 2/O-pentanol mixtures in the presence of 0.1 M KBr and in the absence of salt. These various results have been explained by considering the effect of the micelle solubilized alcohol on the micelle surface charge density and on the dielectric constant of the palisade layer. 48 references.},
doi = {10.1016/0021-9797(81)90177-6},
url = {https://www.osti.gov/biblio/6827443}, journal = {J. Colloid Interface Sci.; (United States)},
number = ,
volume = 80:1,
place = {United States},
year = {1981},
month = {3}
}