Mechanical response and equilibrium swelling of temperature-responsive gels

A. D. Drozdov, J. deClaville Christiansen

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

A model is developed for the mechanical behavior of thermo-responsive gels that accounts for an increase in concentration of physical cross-links between chains driven by phase separation. Governing equations are derived for equilibrium water uptake under unconstrained and constrained swelling, as well as for the elastic response of swollen gels. These relations are applied to the analysis of swelling diagrams on NIPA, VCL, PEG, and NIPA-DMIAA gels. The ability of the model to predict the growth of elastic moduli above the volume phase transition temperature is confirmed by numerical simulation.

Original languageEnglish
Pages (from-to)56-67
Number of pages12
JournalEuropean Polymer Journal
Volume94
DOIs
StatePublished - 1 Sep 2017
Externally publishedYes

Keywords

  • Elastic response
  • Swelling
  • Temperature-sensitive gel
  • Volume phase transition

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