Research output: Contribution to journal › Article › peer-review
The effect of acidity on micellization in dodecyldimethylamine oxide-sodium dodecyl sulfate aqueous mixtures. / Safonova, E. A.; Alexeeva, M. V.; Smirnova, N. A.
In: Colloid Journal, Vol. 71, No. 5, 10.2009, p. 717-724.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - The effect of acidity on micellization in dodecyldimethylamine oxide-sodium dodecyl sulfate aqueous mixtures
AU - Safonova, E. A.
AU - Alexeeva, M. V.
AU - Smirnova, N. A.
PY - 2009/10
Y1 - 2009/10
N2 - The effect of acidity on micellization in aqueous solutions of dodecyldimethylamine oxide-sodium dodecyl sulfate mixtures is studied. The CMC values are determined for acidic and nonacidified solutions at 50 °C and different ratios of two surfactants. The measurements are taken using potentiometry, conductometry, and tensiometry techniques. The CMC values are calculated within the framework of a quasi-chemical model of micellization modified with regard to the specific features of the system under consideration. Nonacidified solutions are modeled as a mixture of anionic and nonionic surfactants, whereas acidic solutions are treated as a mixture of anionic and cationic surfactants. The results of model calculations are in satisfactory agreement with the experimental data.
AB - The effect of acidity on micellization in aqueous solutions of dodecyldimethylamine oxide-sodium dodecyl sulfate mixtures is studied. The CMC values are determined for acidic and nonacidified solutions at 50 °C and different ratios of two surfactants. The measurements are taken using potentiometry, conductometry, and tensiometry techniques. The CMC values are calculated within the framework of a quasi-chemical model of micellization modified with regard to the specific features of the system under consideration. Nonacidified solutions are modeled as a mixture of anionic and nonionic surfactants, whereas acidic solutions are treated as a mixture of anionic and cationic surfactants. The results of model calculations are in satisfactory agreement with the experimental data.
UR - http://www.scopus.com/inward/record.url?scp=70450191941&partnerID=8YFLogxK
U2 - 10.1134/S1061933X09050202
DO - 10.1134/S1061933X09050202
M3 - Article
AN - SCOPUS:70450191941
VL - 71
SP - 717
EP - 724
JO - Colloid Journal
JF - Colloid Journal
SN - 1061-933X
IS - 5
ER -
ID: 9148802