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dc.contributor.authorEvingür, Gülşen Akın
dc.contributor.authorPekcan, Önder
dc.date.accessioned2019-06-27T08:02:40Z
dc.date.available2019-06-27T08:02:40Z
dc.date.issued2015
dc.identifier.issn0092-0606
dc.identifier.issn1573-0689
dc.identifier.urihttps://hdl.handle.net/20.500.12469/662
dc.identifier.urihttps://dx.doi.org/10.1007/s10867-014-9364-x
dc.description.abstractA fluorescence method was employed for studying the drying and swelling of PAAm-kappa C composite gels which were formed from acrylamide (AAm) and N N'- methylenebisacrylamide (BIS) with various kappa-carrageenan (kappa C) contents by free radical crosslinking copolymerization in water. Composite gels were prepared at 80 A degrees C with pyranine (Py) as a fluorescence probe. Scattered light I (sc) and fluorescence emission intensities I (em) were monitored during drying and swelling of these gels. The fluorescence intensity of pyranine increased and decreased as drying and swelling time are increased respectively for all gel samples. The Stern-Volmer equation combined with moving boundary and Li-Tanaka models were used to explain the behavior of I (em) during drying and swelling processes respectively. It is found that the desorption coefficient D (d) decreased as kappa C contents were increased for a given temperature during drying. However the cooperative diffusion coefficient D (s) presented exactly the opposite case. Conventional gravimetrical and volumetric experiments were also carried out during drying and swelling of PAAm-kappa C composite gels. It was observed that D (d) and D (s) values measured with the fluorescence method were found to be much larger than they were measured with the conventional methods.
dc.language.isoEnglish
dc.publisherSpringer
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectAcrylamide
dc.subjectComposite
dc.subjectCarrageenan
dc.subjectFluorescence
dc.subjectDrying
dc.subjectSwelling
dc.titleKinetic models for the dynamical behavior of polyacrylamide (PAAm)-kappa-carrageenan (kappa C) composite gels
dc.typeArticle
dc.identifier.startpage37
dc.identifier.endpage47
dc.relation.journalJournal of Biological Physics
dc.identifier.issue1
dc.identifier.volume41
dc.identifier.wosWOS:000348188200004
dc.identifier.doi10.1007/s10867-014-9364-x
dc.contributor.khasauthorPekcan, Önder


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