Swelling of ultrathin crosslinked polyamide water desalination membranes

Edwin P. Chan, Allison P. Young, Jung Hyun Lee, Jun Young Chung, Christopher M. Stafford

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)


We study the water swelling behavior of semiaromatic crosslinked polyamide (PA) ultrathin films to characterize the network properties of the polymer. Specifically, we use X-ray reflectivity to measure film thickness increase and polymer density decrease of the PA films due to swelling. With the aid of a modified Flory-Rehner theory used to describe the constrained swelling behavior of polymer networks, we are able to extract the Flory interaction parameter and the monomer units between crosslinks by performing the swelling experiments at different levels of hydration.

Original languageEnglish
Pages (from-to)385-391
Number of pages7
JournalJournal of Polymer Science, Part B: Polymer Physics
Issue number6
Publication statusPublished - 2013 Mar 15
Externally publishedYes


  • X-ray
  • crosslinking
  • desalination
  • gels
  • hydrogels
  • membranes
  • swelling
  • thermosets
  • thin films
  • water purification

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Materials Chemistry


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