Collapse of Gels and the Critical Endpoint

Toyoichi Tanaka

doi:10.1103/physrevlett.40.820

March 20, 1978Physical Review Letters

Collapse of Gels and the Critical Endpoint

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Key Points

This research aims to understand the collapse of polyacrylamide gels in response to temperature and fluid composition changes.
Theoretical framework based on mean-field theory and Flory's free energy formula was developed.
Observations were made regarding gel behavior at various temperatures and fluid compositions.
The existence of a critical endpoint in the phase equilibria of polyacrylamide gels was confirmed.
Gel collapse occurs predictably with changes in temperature and fluid composition.

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Implication

Theoretical analysis explains gel collapse due to temperature changes in polyacrylamide gels, suggesting critical phase behavior.

Abstract

Collapse of polyacrylamide gels is observed upon changing temperature or fluid composition. It is explained in terms of mean-field theory based on the extension of Flory's formula for free energy of gels. Theory predicts, and I have observed, existence of a critical endpoint in the phase equilibria.

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Toyoichi Tanaka (1978) studied this question.

synapsesocial.com/papers/6a209820c23ee018386d874a https://doi.org/10.1103/physrevlett.40.820

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Collapse of Gels and the Critical Endpoint

Key Points

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Abstract

Discussion

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Collapse of Gels and the Critical Endpoint

Key Points

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Implication

Abstract

Discussion

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