Fluorescence technique for monitoring swelling of PAAm-kappa-carrageenan gel composites

dc.contributor.authorEvingür, Gülşen Akin
dc.contributor.authorAktaş, Demet Kaya
dc.contributor.authorPekcan, Önder
dc.date.accessioned2019-06-27T08:05:52Z
dc.date.available2019-06-27T08:05:52Z
dc.date.issued2009
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Biyoinformatik ve Genetik Bölümüen_US
dc.description.abstractSteady-state fluorescence (SSF) technique was employed for studying swelling of polyacrylamide (PAAm) gels with various content of kappa- carrageenan. Disc shaped composite gels were prepared by free-radical cross/inking copolymerization of acrylamide (AAm) with various amounts of kappa-carrageenan (kappa C) using N N'- methylenebis (acrylamide) (BIS) as crosslinker in the presence of ammonium persulfate (APS) initiator. Pyranine was introduced as a fluorescence probe. Fluorescence intensity of pyranine was monitored during in situ swelling processes of composite gels. It was observed that fluorescence intensity values decreased as swelling is proceeded. The Li-Tanaka equation was used to determine the swelling time constants tau and cooperative diffusion coefficients D from intensity variations during the swelling processes. It was shown that tau decreased and D increased as the kappa C content in the composites are increased.en_US]
dc.identifier.citation0
dc.identifier.endpage+
dc.identifier.isbn978-90-423-0366-9
dc.identifier.scopusqualityN/A
dc.identifier.startpage151en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12469/1128
dc.identifier.wosWOS:000281199400015en_US
dc.identifier.wosqualityN/A
dc.institutionauthorPekcan, Önderen_US
dc.language.isoenen_US
dc.publisherShaker Publishingen_US
dc.relation.journalOptical Measurement Techniques for Structures and Systemsen_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.titleFluorescence technique for monitoring swelling of PAAm-kappa-carrageenan gel compositesen_US
dc.typeConference Objecten_US
dspace.entity.typePublication

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