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Diffusion Through Membranes of the Polyelectrolyte Complex of Chitosan and Alginate
Author(s) -
Cárdenas Adriana,
ArgüellesMonal Waldo,
Goycoolea Francisco M.,
HigueraCiapara Inocencio,
Peniche Carlos
Publication year - 2003
Publication title -
macromolecular bioscience
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.924
H-Index - 105
eISSN - 1616-5195
pISSN - 1616-5187
DOI - 10.1002/mabi.200300031
Subject(s) - polyelectrolyte , arrhenius plot , swelling , chitosan , membrane , diffusion , arrhenius equation , chemistry , polymer chemistry , chemical engineering , activation energy , fick's laws of diffusion , polymer , thermodynamics , organic chemistry , biochemistry , physics , engineering
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.Arrhenius type plot of the temperature dependence of the apparent diffusion coefficients for the membrane of the polyelectrolyte complex between chitosan and alginate in water.