Synthesis, characterization and swelling performance of a temperature/pH-sensitive kappa-carrageenan graft copolymer

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dc.contributor.authorGeyik, Gulcan
dc.contributor.authorIsiklan, Nuran
dc.date.accessioned2021-01-14T18:10:36Z
dc.date.available2021-01-14T18:10:36Z
dc.date.issued2020
dc.departmentKKÜ
dc.description.abstractA binary graft copolymerization of dimethylaminoethyl methacrylate (DMAEMA) and acrylic acid (AA) onto kappa-carrageenan (CG) was performed by using microwave irradiation in the presence of 4A'-Azobis(4-cyanovaleric acid) (ACVA). The structure of the CG-g-P(DMAEMA/AA) copolymers was confirmed using C-13 NMR, MR, DSCTFGA and XRD. The effects of the DMAEMA/AA ratio, the microwave power and irradiation duration, and the concentrations of CG and ACVA on grafting yield and grafting efficiency were all investigated, and the best values of them were found to be 150% and 85%, respectively. The lower critical solution temperatures (LCST) for CG-g-P(DMAEMA/AA) copolymers at various pH conditions were determined, and when the pH value of the medium was increased from 12 to 10, the LCST of the copolymer decreased from 53 degrees C to 39 degrees C. Moreover, swelling performance of the copolymers under various pH conditions was examined, and it was observed that the swelling ratio of the copolymer increased with a decrease in the pH value of the medium. (C) 2020 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipKirikkale UniversityKirikkale University [2018/055]en_US
dc.description.sponsorshipThe authors wish to thank the Kirikkale University for their financial support of this study with the grant number of 2018/055, 2018.en_US
dc.identifier.citationBu makale açık erişimli değildir.en_US
dc.identifier.doi10.1016/j.ijbiomac.2020.02.129
dc.identifier.endpage370en_US
dc.identifier.issn0141-8130
dc.identifier.issn1879-0003
dc.identifier.pmid32061853
dc.identifier.scopus2-s2.0-85080856141
dc.identifier.scopusqualityQ1
dc.identifier.startpage359en_US
dc.identifier.urihttps://doi.org/10.1016/j.ijbiomac.2020.02.129
dc.identifier.urihttps://hdl.handle.net/20.500.12587/12694
dc.identifier.volume152en_US
dc.identifier.wosWOS:000530068000037
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherELSEVIERen_US
dc.relation.ispartofINTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectTemperature/pH-sensitive copolymersen_US
dc.subjectCarrageenanen_US
dc.subjectGraft copolymerizationen_US
dc.subjectPoly(dimethylaminoethyl methacrylate)en_US
dc.subjectPoly(acrylic acid)en_US
dc.titleSynthesis, characterization and swelling performance of a temperature/pH-sensitive kappa-carrageenan graft copolymeren_US
dc.typeArticle

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