Journal
POLYMER BULLETIN
Volume 75, Issue 8, Pages 3325-3340Publisher
SPRINGER
DOI: 10.1007/s00289-017-2205-x
Keywords
Acacia gum; Graft copolymerization; Acrylic acid; Photoinitiator; Methylene blue
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Graft copolymerization of polyacrylic acid (PAA) onto Acacia gum (AG) using erythrosine dye (ERY) in aqueous media combined with thiourea (TU) as a reducing agent under visible light was studied. The optimal grafting parameters were examined in terms of irradiation time and the concentrations of ERY, TU, AA, and AG. Grafting factors such as grafting percentage (GP%), grafting efficiency (GE%), as well as homopolymerization (HP%) all were determined. Graft products of PAA-g-AG copolymers were characterized using FTIR spectroscopy, X-ray diffraction, and thermal analysis. The highest GP (310%) was obtained through optimization of the grafting variables. The optimized graft product was crosslinked and used as a potential candidate for removing of methylene blue dye from an aqueous system.
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