Diffusion Through Membranes of the Polyelectrolyte Complex of Chitosan and Alginate

Adriana Cárdenas, Waldo Argüelles-Monal, Francisco M. Goycoolea, Inocencio Higuera-Ciapara, Carlos Peniche

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

The swelling of membranes of the polyelectrolyte complex (PEC) between chitosan and alginate shows a similar pattern to that of other PECs. However, if the swelled membranes are dried, a second swelling process is seen which exhibits Fickian behavior. The apparent activation energy was estimated to be 32.8 kJ · mol-1. The release rate of model solutes was highly dependent on their molecular weight and the pH of the medium.

Original languageEnglish
Pages (from-to)535-539
Number of pages5
JournalMacromolecular Bioscience
Volume3
Issue number10
DOIs
StatePublished - 15 Oct 2003
Externally publishedYes

Keywords

  • Alginate
  • Chitosan
  • Diffusion
  • Polyelectrolyte complex
  • Swelling

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