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Synthesis and characteristics of semi‐interpenetrating polymer network hydrogels based on chitosan and poly(hydroxy ethyl methacrylate)
Author(s) -
Kim Seon Jeong,
Shin Su Ryon,
Shin Dong Ik,
Kim In Young,
Kim Sun I.
Publication year - 2005
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/app.21407
Subject(s) - self healing hydrogels , swelling , methacrylate , chitosan , polymer chemistry , interpenetrating polymer network , polymer , materials science , chemical engineering , dissociation (chemistry) , ionic bonding , kinetics , chemistry , composite material , copolymer , organic chemistry , ion , physics , quantum mechanics , engineering
Semi‐interpenetrating polymer networks (semi‐IPNs), composed of chitosan and poly(hydroxy ethyl methacrylate) hydrogels, were prepared and the effects of various pH, temperatures, and an electric‐field on the swollen hydrogels were investigated. The swelling kinetics increased rapidly, reaching equilibrium within 60 min. Semi‐IPN hydrogels exhibited relatively high swelling ratios, 150∼350%. The swelling ratio increased when the pH of the buffer was below pH 7 as a result of the dissociation of ionic bonds. Semi‐IPN hydrogels showed electroresponsiveness by shrinking when an electric field was applied. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 96: 86–92, 2005