Thermodynamic study of the adsorption of octylsulfinylethanol at the micellar solution/air interface

Kinsi Motomura, Shin Ichiro Iwanaga, Shozo Uryu, Hidetsugu Matsukiyo, Michio Yamanaka, Ryohei Matuura

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

The surface tension of the aqueous solution of octylsulfinylethanol (OSE) was measured as a function of temperature at concentrations around the critical micelle concentration (CMC). The derivative of surface tension with respect to the temperature vs concentration curve was found to change abruptly at the CMC like that of dodecylammonium chloride (DAC) reported previously [1]. By comparing the experimental results with the thermodynamic relations derived for the nonionic surfactant, it has been proved in the case of the OSE solution that the micelle formation can be treated thermodynamically as the appearance of a macroscopic bulk phase in the solution. Further, it was found that the entropy change associated with the transfer of surfactant from the micelle to the water/air interface has a positive value for OSE whereas for DAC it had a negative one. This has been accounted for by the difference between OSE and DAC in contributions of the hydrocarbon chain and polar group parts of the surfactant molecule to its mean partial molar entropy.

Original languageEnglish
Pages (from-to)19-31
Number of pages13
JournalColloids and Surfaces
Volume9
Issue number1
DOIs
Publication statusPublished - Mar 1 1984

Fingerprint

Critical micelle concentration
Thermodynamics
Adsorption
Micelles
Surface tension
Surface active agents
Entropy
Air
Nonionic surfactants
Hydrocarbons
Derivatives
Temperature
Molecules
Water

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Thermodynamic study of the adsorption of octylsulfinylethanol at the micellar solution/air interface. / Motomura, Kinsi; Iwanaga, Shin Ichiro; Uryu, Shozo; Matsukiyo, Hidetsugu; Yamanaka, Michio; Matuura, Ryohei.

In: Colloids and Surfaces, Vol. 9, No. 1, 01.03.1984, p. 19-31.

Research output: Contribution to journalArticle

Motomura, K, Iwanaga, SI, Uryu, S, Matsukiyo, H, Yamanaka, M & Matuura, R 1984, 'Thermodynamic study of the adsorption of octylsulfinylethanol at the micellar solution/air interface', Colloids and Surfaces, vol. 9, no. 1, pp. 19-31. https://doi.org/10.1016/0166-6622(84)80139-0
Motomura, Kinsi ; Iwanaga, Shin Ichiro ; Uryu, Shozo ; Matsukiyo, Hidetsugu ; Yamanaka, Michio ; Matuura, Ryohei. / Thermodynamic study of the adsorption of octylsulfinylethanol at the micellar solution/air interface. In: Colloids and Surfaces. 1984 ; Vol. 9, No. 1. pp. 19-31.
@article{ebbdd12e7eb0400e83310ca1d9d0715f,
title = "Thermodynamic study of the adsorption of octylsulfinylethanol at the micellar solution/air interface",
abstract = "The surface tension of the aqueous solution of octylsulfinylethanol (OSE) was measured as a function of temperature at concentrations around the critical micelle concentration (CMC). The derivative of surface tension with respect to the temperature vs concentration curve was found to change abruptly at the CMC like that of dodecylammonium chloride (DAC) reported previously [1]. By comparing the experimental results with the thermodynamic relations derived for the nonionic surfactant, it has been proved in the case of the OSE solution that the micelle formation can be treated thermodynamically as the appearance of a macroscopic bulk phase in the solution. Further, it was found that the entropy change associated with the transfer of surfactant from the micelle to the water/air interface has a positive value for OSE whereas for DAC it had a negative one. This has been accounted for by the difference between OSE and DAC in contributions of the hydrocarbon chain and polar group parts of the surfactant molecule to its mean partial molar entropy.",
author = "Kinsi Motomura and Iwanaga, {Shin Ichiro} and Shozo Uryu and Hidetsugu Matsukiyo and Michio Yamanaka and Ryohei Matuura",
year = "1984",
month = "3",
day = "1",
doi = "10.1016/0166-6622(84)80139-0",
language = "English",
volume = "9",
pages = "19--31",
journal = "Colloids and Surfaces",
issn = "0166-6622",
publisher = "Elsevier BV",
number = "1",

}

TY - JOUR

T1 - Thermodynamic study of the adsorption of octylsulfinylethanol at the micellar solution/air interface

AU - Motomura, Kinsi

AU - Iwanaga, Shin Ichiro

AU - Uryu, Shozo

AU - Matsukiyo, Hidetsugu

AU - Yamanaka, Michio

AU - Matuura, Ryohei

PY - 1984/3/1

Y1 - 1984/3/1

N2 - The surface tension of the aqueous solution of octylsulfinylethanol (OSE) was measured as a function of temperature at concentrations around the critical micelle concentration (CMC). The derivative of surface tension with respect to the temperature vs concentration curve was found to change abruptly at the CMC like that of dodecylammonium chloride (DAC) reported previously [1]. By comparing the experimental results with the thermodynamic relations derived for the nonionic surfactant, it has been proved in the case of the OSE solution that the micelle formation can be treated thermodynamically as the appearance of a macroscopic bulk phase in the solution. Further, it was found that the entropy change associated with the transfer of surfactant from the micelle to the water/air interface has a positive value for OSE whereas for DAC it had a negative one. This has been accounted for by the difference between OSE and DAC in contributions of the hydrocarbon chain and polar group parts of the surfactant molecule to its mean partial molar entropy.

AB - The surface tension of the aqueous solution of octylsulfinylethanol (OSE) was measured as a function of temperature at concentrations around the critical micelle concentration (CMC). The derivative of surface tension with respect to the temperature vs concentration curve was found to change abruptly at the CMC like that of dodecylammonium chloride (DAC) reported previously [1]. By comparing the experimental results with the thermodynamic relations derived for the nonionic surfactant, it has been proved in the case of the OSE solution that the micelle formation can be treated thermodynamically as the appearance of a macroscopic bulk phase in the solution. Further, it was found that the entropy change associated with the transfer of surfactant from the micelle to the water/air interface has a positive value for OSE whereas for DAC it had a negative one. This has been accounted for by the difference between OSE and DAC in contributions of the hydrocarbon chain and polar group parts of the surfactant molecule to its mean partial molar entropy.

UR - http://www.scopus.com/inward/record.url?scp=0021390017&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0021390017&partnerID=8YFLogxK

U2 - 10.1016/0166-6622(84)80139-0

DO - 10.1016/0166-6622(84)80139-0

M3 - Article

AN - SCOPUS:0021390017

VL - 9

SP - 19

EP - 31

JO - Colloids and Surfaces

JF - Colloids and Surfaces

SN - 0166-6622

IS - 1

ER -