Statistical thermodynamic foundation for mesoscale aggregation in ternary mixtures

Seishi Shimizu; Nobuyuki Matubayasi

doi:10.1039/C8CP01207E

Statistical thermodynamic foundation for mesoscale aggregation in ternary mixtures

Seishi Shimizu, Nobuyuki Matubayasi

Chemistry

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

Abstract

Ternary solvent mixtures with two mutually miscible and one immiscible solvent pairings often exhibit persistent scattering profiles corresponding to mesoscale structure formation. Despite the morphological information on such mesostructures via extensive scattering measurements and simulation, the origin of these mesostructures, why they persist over a wide composition range, and why they appear around the plait point have remained a mystery. Here we answer all these questions through constructing a fundamental molecular thermodynamic theory, synthetizing thermodynamic stability, scattering and the fluctuation solution theory. The plait point condition, when interpreted via differential geometry, is shown to be the origin of the large structure factor persistent over a wide composition range.

Original language	English
Pages (from-to)	13777-13784
Number of pages	8
Journal	Physical Chemistry Chemical Physics
Volume	20
Issue number	20
Early online date	10 May 2018
DOIs	https://doi.org/10.1039/C8CP01207E
Publication status	Published - 28 May 2018

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10.1039/C8CP01207E

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Seishi Shimizu
- seishi.shimizuyork.acuk
- Chemistry - Reader
Person: Academic

Cite this

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N2 - Ternary solvent mixtures with two mutually miscible and one immiscible solvent pairings often exhibit persistent scattering profiles corresponding to mesoscale structure formation. Despite the morphological information on such mesostructures via extensive scattering measurements and simulation, the origin of these mesostructures, why they persist over a wide composition range, and why they appear around the plait point have remained a mystery. Here we answer all these questions through constructing a fundamental molecular thermodynamic theory, synthetizing thermodynamic stability, scattering and the fluctuation solution theory. The plait point condition, when interpreted via differential geometry, is shown to be the origin of the large structure factor persistent over a wide composition range.

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Statistical thermodynamic foundation for mesoscale aggregation in ternary mixtures

Abstract

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Seishi Shimizu

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