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Preparation and characterization of high efficiency ion‐exchange crosslinked acrylic fibers
Author(s) -
Shoushtari Ahmad M.,
Zargaran Mojdeh,
Abdouss Majid
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.23465
Subject(s) - materials science , hydrazide , adsorption , fiber , polymer chemistry , chemical engineering , ion exchange , amine gas treating , hydroxylamine hydrochloride , hydroxylamine , drop (telecommunication) , hydrazine (antidepressant) , hydrochloride , composite material , ion , chemistry , organic chemistry , chromatography , telecommunications , computer science , engineering
Commercial acrylic fiber samples were first pretreated with hydrazine under various concentrations to give crosslinked structure. Then, the crosslinked fiber samples with different degree of crosslinking were treated with hydroxylamine hydrochloride to develop ion‐exchange fibers. These fibers contain amidoxime, amine, amide, and hydrazide groups simultaneously. The effects of reaction conditions on physical properties, thermal characteristics, surface morphology, ion adsorption quantity, and reusability were investigated. The results show that by increasing the reaction time, temperature, and concentration of hydroxylamine hydrochloride, the content of amidoxime groups in all samples were increased, but with noncrosslinked fibers noticeable drop in the mechanical properties were observed, while in crosslinked sample prepared under optimum conditions of reaction, good ion adsorption capacity with keeping mechanical properties was achieved. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 2202–2209, 2006