Reversible Solvent Swelling in Pigment Gallstones

Judith M. Conway-Ayoub, Stephen H. Carr

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish (US)
Pages (from-to)145-150
Number of pages6
JournalJournal of Macromolecular Science, Part B
Issue number2-3
StatePublished - Jun 1 1988

ASJC Scopus subject areas

  • General Chemistry
  • Condensed Matter Physics
  • Polymers and Plastics
  • Materials Chemistry


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