A Fluorescence Study on Swelling of Hydrogels (paam) at Various Cross-Linker Contents

dc.contributor.author Aktas, Demet Kaya
dc.contributor.author Pekcan, Mehmet Önder
dc.contributor.author Evingür, Gülşen Akin
dc.contributor.author Pekcan, Önder
dc.contributor.other Molecular Biology and Genetics
dc.date.accessioned 2019-06-27T08:05:32Z
dc.date.available 2019-06-27T08:05:32Z
dc.date.issued 2009
dc.department Fakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Biyoinformatik ve Genetik Bölümü en_US
dc.description.abstract Disk-shaped acrylamide (AAm) gels were prepared from AAm with various NN'-methylenebisacrylamide (Bis) contents as cross-linker in the presence of ammonium persulfate as an initiator by free-radical cross-linking copolymerization in water. Polyacrylamide (PAAm) gels were dried before using for swelling experiments. Steady-state fluorescence spectrometer was employed during the swelling of PAAm hydrogels in water. Pyranine was introduced as a fluorescence probe. Fluorescence intensity of pyranine from various Bis content gel samples was measured during in situ swelling process. It was observed that fluorescence intensity decreased as swelling has proceeded. Gravimetric and volumetric experiments were also performed. The Li-Tanaka equation was used to determine the swelling time constants tau(c) and cooperative diffusion coefficients D-c from intensity weight and volume variations during the swelling processes. It was observed that swelling time constants tau(c) increased and diffusion coefficients D-c decreased as the cross-linker content was increased. (C) 2010 Wiley Periodicals Inc. Adv Polym Techn 28:215-223 2009 en_US]
dc.description.abstract Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/adv.20163 en_US]
dc.identifier.citationcount 15
dc.identifier.doi 10.1002/adv.20163 en_US
dc.identifier.endpage 223
dc.identifier.issn 0730-6679 en_US
dc.identifier.issn 1098-2329 en_US
dc.identifier.issn 0730-6679
dc.identifier.issn 1098-2329
dc.identifier.issue 4
dc.identifier.scopus 2-s2.0-75149172778 en_US
dc.identifier.scopusquality Q2
dc.identifier.startpage 215 en_US
dc.identifier.uri https://hdl.handle.net/20.500.12469/1087
dc.identifier.uri https://doi.org/10.1002/adv.20163
dc.identifier.volume 28 en_US
dc.identifier.wos WOS:000274112400001 en_US
dc.institutionauthor Pekcan, Önder en_US
dc.language.iso en en_US
dc.publisher Wiley en_US
dc.relation.journal Advances in Polymer Technology en_US
dc.relation.publicationcategory Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı en_US
dc.rights info:eu-repo/semantics/openAccess en_US
dc.scopus.citedbyCount 15
dc.subject Diffusion en_US
dc.subject Fluorescence en_US
dc.subject Hydrogels en_US
dc.subject Swelling en_US
dc.title A Fluorescence Study on Swelling of Hydrogels (paam) at Various Cross-Linker Contents en_US
dc.type Article en_US
dc.wos.citedbyCount 15
dspace.entity.type Publication
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relation.isAuthorOfPublication.latestForDiscovery e5459272-ce6e-44cf-a186-293850946f24
relation.isOrgUnitOfPublication 71ce8622-7449-4a6a-8fad-44d881416546
relation.isOrgUnitOfPublication.latestForDiscovery 71ce8622-7449-4a6a-8fad-44d881416546

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