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Permeation of solutes through interpenetrating polymer network hydrogels composed of poly(vinyl alcohol) and poly(acrylic acid)
Author(s) -
Shin Heung Soo,
Kim So Yeon,
Lee Young Moo,
Lee Kwang Hyun,
Kim Seon Jeong,
Rogers Charles E.
Publication year - 1998
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19980718)69:3<479::aid-app7>3.0.co;2-d
Subject(s) - vinyl alcohol , self healing hydrogels , acrylic acid , permeation , swelling , interpenetrating polymer network , polymer chemistry , ionic strength , ionic bonding , chemical engineering , polyelectrolyte , polymer , electrolyte , materials science , chemistry , organic chemistry , composite material , membrane , aqueous solution , ion , copolymer , electrode , engineering , biochemistry
The swelling behaviors of poly(vinyl alcohol)–poly(acrylic acid) (PVA–PAAc) interpenetrating networks (IPN) hydrogels in the presence of electrolytes were studied. The ionized carboxylic group within IPN hydrogels at pH 7 strongly interacted with electrolytes in the medium and caused anomalous swelling pattern. The permeabilities of 5 representative solutes were regulated as a function of temperature, pH, ionic strength, solute size, and ionic properties of solutes. The permeation of nonionic solutes followed the swelling behaviors dependent on external stimuli, including the above factors. However, the ionic solutes showed different trends in their permeation through IPN hydrogels. © 1998 John Wiley & Sons, Inc. J Appl Polm Sci 69: 479–486, 1998