Reversible Solvent Swelling in Pigment Gallstones

Judith M. Conway-Ayoub; Stephen H. Carr

doi:10.1080/00222348808245760

Reversible Solvent Swelling in Pigment Gallstones

Judith M. Conway-Ayoub, Stephen H. Carr

Materials Science and Engineering

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

Abstract

The reversibility of solvent swelling and the existence of an equilibrium swelling ratio, q_eq, has been established for pigment gallstone particles. A simple technique was devised to demonstrate that solvent imbibition in pigment gallstone particles is reversible. This finding confirms unequivocally that the molecular makeup of pigment gallstones involves polymer networks. In addition, this new method permits serial direct observation of the interactions between pigment gallstone particles and the solvent. Application of the technique to other network polymers should be readily possible.

Original language	English (US)
Pages (from-to)	145-150
Number of pages	6
Journal	Journal of Macromolecular Science, Part B
Volume	27
Issue number	2-3
DOIs	https://doi.org/10.1080/00222348808245760
State	Published - Jun 1 1988

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Polymers and Plastics
Materials Chemistry

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10.1080/00222348808245760

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abstract = "The reversibility of solvent swelling and the existence of an equilibrium swelling ratio, qeq, has been established for pigment gallstone particles. A simple technique was devised to demonstrate that solvent imbibition in pigment gallstone particles is reversible. This finding confirms unequivocally that the molecular makeup of pigment gallstones involves polymer networks. In addition, this new method permits serial direct observation of the interactions between pigment gallstone particles and the solvent. Application of the technique to other network polymers should be readily possible.",

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note = "Funding Information: Supported by a Merit Review Research Award from the Veterans Administration and by the Otho S . A. Sprague Foundation at North-western University. Use of some of the Central Facilities of the Northwestern University Materials Research Center (NSF MRL Pro- gram) is gratefully acknowledged.",

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AB - The reversibility of solvent swelling and the existence of an equilibrium swelling ratio, qeq, has been established for pigment gallstone particles. A simple technique was devised to demonstrate that solvent imbibition in pigment gallstone particles is reversible. This finding confirms unequivocally that the molecular makeup of pigment gallstones involves polymer networks. In addition, this new method permits serial direct observation of the interactions between pigment gallstone particles and the solvent. Application of the technique to other network polymers should be readily possible.

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Reversible Solvent Swelling in Pigment Gallstones

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