Graft Copolymerization of Itaconic Acid onto Sodium Alginate Using Ceric Ammonium Nitrate as Initiator

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dc.contributor.authorIsiklan, Nuran
dc.contributor.authorKursun, Fatma
dc.contributor.authorInal, Murat
dc.date.accessioned2020-06-25T17:48:13Z
dc.date.available2020-06-25T17:48:13Z
dc.date.issued2009
dc.departmentKırıkkale Üniversitesi
dc.description.abstractGraft copolymers of sodium alginate (NaAlg) with itaconic acid (IA) were prepared in aqueous solution using ceric ammonium nitrate (CAN) as the redox initiator under N(2) atmosphere. The carboxylic acid groups of IA were neutralized with sodium hydroxide before grafting process. Grafted copolymers as sodium salts (NaAlg-g-PIA) were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, intrinsic viscosity measurement, differential scanning calorimetry, and thermogravimetric analysis. The graft yield (GY %) of the graft copolymer and the grafting efficiency (GE %) of the reaction were evaluated comparatively. The effects of the reaction variables such as the reaction time, temperature, percentage of NaAlg, monomer and initiator concentrations on these parameters were studied. It was observed that GY% and GE% increased and then decreased with increasing concentrations of IA and polymerization temperature. The optimum grafting conditions for maximum GY were obtained with a reaction time of 5 h, reaction temperature of 30 degrees C, IA concentration of 0.23 M, CAN concentration of 9.12 X 10(-2) M and percentage of NaAlg 0.5 g/dL. The overall activation energy for the grafting was also calculated to be 1135 cal/mol. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 114: 40-48, 2009en_US
dc.identifier.citationclosedAccessen_US
dc.identifier.doi10.1002/app.30549
dc.identifier.endpage48en_US
dc.identifier.issn0021-8995
dc.identifier.issue1en_US
dc.identifier.scopus2-s2.0-77953877982
dc.identifier.scopusqualityQ2
dc.identifier.startpage40en_US
dc.identifier.urihttps://doi.org/10.1002/app.30549
dc.identifier.urihttps://hdl.handle.net/20.500.12587/4360
dc.identifier.volume114en_US
dc.identifier.wosWOS:000268738500006
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherJohn Wiley & Sons Incen_US
dc.relation.ispartofJournal Of Applied Polymer Science
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectgraft copolymerizationen_US
dc.subjectsodium alginateen_US
dc.subjectitaconic aciden_US
dc.subjectfree radical copolymerizationen_US
dc.titleGraft Copolymerization of Itaconic Acid onto Sodium Alginate Using Ceric Ammonium Nitrate as Initiatoren_US
dc.typeArticle

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