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Determination of swelling behavior and morphological properties of poly(acrylamide‐ co ‐itaconic acid) and poly(acrylic acid‐ co ‐itaconic acid) copolymeric hydrogels
Author(s) -
Pulat Mehlika,
Eksi Haslet
Publication year - 2006
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.25182
Subject(s) - itaconic acid , self healing hydrogels , swelling , acrylic acid , polymer chemistry , monomer , acrylamide , ethylene glycol dimethacrylate , polymerization , materials science , ethylene glycol , radical polymerization , polymer , chemical engineering , nuclear chemistry , chemistry , organic chemistry , composite material , engineering , methacrylic acid
Poly(acrylamide‐ co ‐itaconic acid) (PAAmIA) and poly(acrylic acid‐ co ‐itaconic acid) (PAAIA) copolymeric hydrogels were prepared with different compositions via free‐radical polymerization. Ethylene glycol dimethacrylate (EGDMA) was used as an original crosslinker for these monomers. Gelation percentages of the monomers were studied in detail and it was found that addition of IA into the monomer mixture decreased the gelation percentage. The variation in swelling values (%) with time, temperature, and pH was determined for all hydrogels. PAA, which is the most swollen hydrogel, has the swelling percentage value of 2000% at pH = 7.4, 37°C. Swelling behaviors were explained with detailed SEM micrographs, which show the morphologic differences between dry and swollen hydrogels. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 5994–5999, 2006