Structure-property relations for equilibrium swelling of cationic gels

A. D. Drozdov, J. Dec Christiansen

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Governing equations are developed for equilibrium swelling of a cationic polyelectrolyte gel in aqueous solutions with various pH and molar fractions of a monovalent salt. Material constants are determined by fitting observations on several homo- and copolymer gels in two types of tests: when swelling is conducted in water baths with varied pH and a fixed molar fraction of salt, and when experiments are performed in water baths with a fixed pH and varied concentration of salt. Phenomenological relations are suggested for the effect of total volume fraction of monomers in a pre-gel solution, molar fraction of ionic monomers, and molar fraction of cross-linker on adjustable parameters in the model.

Original languageEnglish
Pages (from-to)23-35
Number of pages13
JournalEuropean Polymer Journal
Volume79
DOIs
StatePublished - 1 Jun 2016
Externally publishedYes

Keywords

  • Cationic gel
  • Equilibrium swelling
  • Modeling
  • Structure-property relations

ASJC Scopus subject areas

  • Physics and Astronomy (all)
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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