Selective solvation effects in phase separation in aqueous mixtures

Akira Onuki; Ryuichi Okamoto

doi:10.1016/j.cocis.2011.04.002

Selective solvation effects in phase separation in aqueous mixtures

Akira Onuki, Ryuichi Okamoto

Research output: Contribution to journal › Review article › peer-review

23 Citations (Scopus)

Abstract

Selective solvation can be crucial in phase separation in polar binary mixtures (water-oil) with a small amount of hydrophilic ions or hydrophobic particles. They are preferentially attracted to one of the solvent components, leading to a number of intriguing effects coupled to phase separation. For example, if cations and anions interact differently with the two components, an electric double layer emerges at a liquid-liquid interface. The main aim of this paper is to show that a strongly hydrophilic (hydrophobic) solute induces precipitation of water-rich (oil-rich) domains above a critical solute density n _p outside the solvent coexistence curve.

Original language	English
Pages (from-to)	525-533
Number of pages	9
Journal	Current Opinion in Colloid and Interface Science
Volume	16
Issue number	6
DOIs	https://doi.org/10.1016/j.cocis.2011.04.002
Publication status	Published - Dec 2011
Externally published	Yes

Keywords

Phase separation
Precipitation
Selective solvation

ASJC Scopus subject areas

Surfaces and Interfaces
Physical and Theoretical Chemistry
Polymers and Plastics
Colloid and Surface Chemistry

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10.1016/j.cocis.2011.04.002

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title = "Selective solvation effects in phase separation in aqueous mixtures",

abstract = "Selective solvation can be crucial in phase separation in polar binary mixtures (water-oil) with a small amount of hydrophilic ions or hydrophobic particles. They are preferentially attracted to one of the solvent components, leading to a number of intriguing effects coupled to phase separation. For example, if cations and anions interact differently with the two components, an electric double layer emerges at a liquid-liquid interface. The main aim of this paper is to show that a strongly hydrophilic (hydrophobic) solute induces precipitation of water-rich (oil-rich) domains above a critical solute density n p outside the solvent coexistence curve.",

keywords = "Phase separation, Precipitation, Selective solvation",

author = "Akira Onuki and Ryuichi Okamoto",

note = "Funding Information: This work was supported by KAKENHI (Grant-in-Aid for Scientific Research) on Priority Area Soft Matter Physics from the Ministry of Education, Culture, Sports, Science and Technology of Japan . Thanks are also due to M. Anishimov, K. Sadakane, H. Seto, T. Araki, T. Osakai, and T. Hashimoto.",

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doi = "10.1016/j.cocis.2011.04.002",

language = "English",

volume = "16",

pages = "525--533",

journal = "Current Opinion in Colloid and Interface Science",

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T1 - Selective solvation effects in phase separation in aqueous mixtures

AU - Onuki, Akira

AU - Okamoto, Ryuichi

N1 - Funding Information: This work was supported by KAKENHI (Grant-in-Aid for Scientific Research) on Priority Area Soft Matter Physics from the Ministry of Education, Culture, Sports, Science and Technology of Japan . Thanks are also due to M. Anishimov, K. Sadakane, H. Seto, T. Araki, T. Osakai, and T. Hashimoto.

PY - 2011/12

Y1 - 2011/12

N2 - Selective solvation can be crucial in phase separation in polar binary mixtures (water-oil) with a small amount of hydrophilic ions or hydrophobic particles. They are preferentially attracted to one of the solvent components, leading to a number of intriguing effects coupled to phase separation. For example, if cations and anions interact differently with the two components, an electric double layer emerges at a liquid-liquid interface. The main aim of this paper is to show that a strongly hydrophilic (hydrophobic) solute induces precipitation of water-rich (oil-rich) domains above a critical solute density n p outside the solvent coexistence curve.

AB - Selective solvation can be crucial in phase separation in polar binary mixtures (water-oil) with a small amount of hydrophilic ions or hydrophobic particles. They are preferentially attracted to one of the solvent components, leading to a number of intriguing effects coupled to phase separation. For example, if cations and anions interact differently with the two components, an electric double layer emerges at a liquid-liquid interface. The main aim of this paper is to show that a strongly hydrophilic (hydrophobic) solute induces precipitation of water-rich (oil-rich) domains above a critical solute density n p outside the solvent coexistence curve.

KW - Phase separation

KW - Precipitation

KW - Selective solvation

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DO - 10.1016/j.cocis.2011.04.002

M3 - Review article

AN - SCOPUS:84855869375

VL - 16

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EP - 533

JO - Current Opinion in Colloid and Interface Science

JF - Current Opinion in Colloid and Interface Science

SN - 1359-0294

IS - 6

ER -

Selective solvation effects in phase separation in aqueous mixtures

Abstract

Keywords

ASJC Scopus subject areas

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