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The swelling behaviors and network parameters of cationic starch‐ g ‐acrylic acid/poly(dimethyldiallylammonium chloride) semi‐interpenetrating polymer networks hydrogels
Author(s) -
Li Xin,
Xu Shimei,
Pen Yang,
Wang Jide
Publication year - 2008
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.28581
Subject(s) - swelling , cationic polymerization , self healing hydrogels , acrylic acid , interpenetrating polymer network , aqueous solution , starch , polymer chemistry , polymer , materials science , chloride , swelling capacity , fourier transform infrared spectroscopy , chemical engineering , copolymer , nuclear chemistry , chemistry , composite material , organic chemistry , engineering , metallurgy
Abstract Amphiphilic semi‐interpenetrating polymer networks (semi‐IPN) hydrogels were prepared by a sequential‐IPN method by acrylic acid graft copolymerization into cationic starch in mild aqueous media of poly(dimethyldiallylammonium chloride). Some main factors were investigated to evaluate the swelling of hydrogels, and the network parameters M c were given accordingly to elaborate the interaction between polymers. The chemical structure of the resulting hydrogel was confirmed using Fourier transform infrared spectroscopy. The cationic starch‐based semi‐IPN hydrogels achieved a high swelling capacity of 1070 g/g in deionized water and 94 g/g in 0.9 wt % NaCl solution, respectively) and high compressive stress in a high water content. Besides, a different pH‐dependent behavior was found for this semi‐IPN hydrogel. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008