Surface and colloid properties of cyclic amides II. Phase separation, surface activity and micellization in mixtures of N-hexyl-2-pyrrolidone and water

Anjing Lou; Brian A. Pethica; P. Somasundaran

doi:10.1016/S0927-7757(97)00046-0

Surface and colloid properties of cyclic amides II. Phase separation, surface activity and micellization in mixtures of N-hexyl-2-pyrrolidone and water

Anjing Lou, Brian A. Pethica, P. Somasundaran

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

N-hexyl-2-pyrrolidone (HP) and water are partially miscible above a lower consolute temperature (LCT) of 19.1 °C. The interfacial tension of the two phase system was measured as a function of temperature. HP is surface active at the air/solution interface and forms micelles in solution at all temperatures from the freezing point up to the LCT and up to 25 °C in the water-rich phase above the LCT. At low water contents, water is positively adsorbed at the air/solution interface.

Original language	English (US)
Pages (from-to)	297-303
Number of pages	7
Journal	Colloids and Surfaces A: Physicochemical and Engineering Aspects
Volume	129-130
DOIs	https://doi.org/10.1016/S0927-7757(97)00046-0
State	Published - Nov 30 1997
Externally published	Yes

All Science Journal Classification (ASJC) codes

Surfaces and Interfaces
Physical and Theoretical Chemistry
Colloid and Surface Chemistry

Keywords

Micellization
N-hexyl-2-pyrrolidone
Phase separation

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10.1016/S0927-7757(97)00046-0

Cite this

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title = "Surface and colloid properties of cyclic amides II. Phase separation, surface activity and micellization in mixtures of N-hexyl-2-pyrrolidone and water",

abstract = "N-hexyl-2-pyrrolidone (HP) and water are partially miscible above a lower consolute temperature (LCT) of 19.1 °C. The interfacial tension of the two phase system was measured as a function of temperature. HP is surface active at the air/solution interface and forms micelles in solution at all temperatures from the freezing point up to the LCT and up to 25 °C in the water-rich phase above the LCT. At low water contents, water is positively adsorbed at the air/solution interface.",

keywords = "Micellization, N-hexyl-2-pyrrolidone, Phase separation",

author = "Anjing Lou and Pethica, {Brian A.} and P. Somasundaran",

note = "Funding Information: We wish to thank the National Science Foundationfo r supportingth is work under grant #CTS-9510190W. e also thank Dr. Ray Anderson of InternationaSlp ecialtyP roductsInc. for the synthesiso f the N-hexyl-2-pyrrolidonaen d Rose Mackey for the analyses.",

year = "1997",

month = nov,

day = "30",

doi = "10.1016/S0927-7757(97)00046-0",

language = "English (US)",

volume = "129-130",

pages = "297--303",

journal = "Colloids and Surfaces A: Physicochemical and Engineering Aspects",

issn = "0927-7757",

publisher = "Elsevier B.V.",

}

Surface and colloid properties of cyclic amides II. Phase separation, surface activity and micellization in mixtures of N-hexyl-2-pyrrolidone and water. / Lou, Anjing; Pethica, Brian A.; Somasundaran, P.
In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 129-130, 30.11.1997, p. 297-303.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Surface and colloid properties of cyclic amides II. Phase separation, surface activity and micellization in mixtures of N-hexyl-2-pyrrolidone and water

AU - Lou, Anjing

AU - Pethica, Brian A.

AU - Somasundaran, P.

N1 - Funding Information: We wish to thank the National Science Foundationfo r supportingth is work under grant #CTS-9510190W. e also thank Dr. Ray Anderson of InternationaSlp ecialtyP roductsInc. for the synthesiso f the N-hexyl-2-pyrrolidonaen d Rose Mackey for the analyses.

PY - 1997/11/30

Y1 - 1997/11/30

N2 - N-hexyl-2-pyrrolidone (HP) and water are partially miscible above a lower consolute temperature (LCT) of 19.1 °C. The interfacial tension of the two phase system was measured as a function of temperature. HP is surface active at the air/solution interface and forms micelles in solution at all temperatures from the freezing point up to the LCT and up to 25 °C in the water-rich phase above the LCT. At low water contents, water is positively adsorbed at the air/solution interface.

AB - N-hexyl-2-pyrrolidone (HP) and water are partially miscible above a lower consolute temperature (LCT) of 19.1 °C. The interfacial tension of the two phase system was measured as a function of temperature. HP is surface active at the air/solution interface and forms micelles in solution at all temperatures from the freezing point up to the LCT and up to 25 °C in the water-rich phase above the LCT. At low water contents, water is positively adsorbed at the air/solution interface.

KW - Micellization

KW - N-hexyl-2-pyrrolidone

KW - Phase separation

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M3 - Article

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SN - 0927-7757

VL - 129-130

SP - 297

EP - 303

JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects

JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects

ER -

Surface and colloid properties of cyclic amides II. Phase separation, surface activity and micellization in mixtures of N-hexyl-2-pyrrolidone and water

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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