The comparative investigation on synthesis, characterizations of silver ion-imprinting and non-imprinting cryogels, their impedance spectroscopies and relaxation mechanisms

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dc.contributor.authorŞarkaya, Koray
dc.contributor.authorDemir, Ahmet
dc.date.accessioned2020-04-30T23:32:42Z
dc.date.available2020-04-30T23:32:42Z
dc.date.issued2019
dc.departmentDÜ, Fen-Edebiyat Fakültesi, Kimya Bölümüen_US
dc.descriptionSarkaya, Koray/0000-0003-0177-5134en_US
dc.descriptionWOS: 000487100600013en_US
dc.description.abstractIn the present study, a novel ion-imprinting and non-imprinting cryogel samples have been prepared using ion-imprinting technique and the dielectric properties have been investigated using an impedance spectroscopy method. In the preparation of ion-imprinted cryogel, at the first attempt, N-methacryloly-(l)-cysteine methyl ester was used as the metal complexing monomer. Ag+-imprinted poly(hydroxyethyl methacrylate-N-methacryloly-(l)-cysteine methyl ester) cryogel was produced by bulk polymerization. Poly(2-hydroxyethyl methacrylate) was selected as the basic matrix by considering properties, high chemical and mechanical stability. After removal of template (silver ions), the ion-imprinted cryogel was used for the removal of photo-film-containing materials. The dielectric properties of cryogel samples have also been investigated by impedance spectroscopy within the frequency range of 1 Hz-10 MHz. The real part of the permittivity increases at low frequencies as electrode effects become dominant. It shows a constant value at high frequencies due to dipole polarization. On the other hand, the imaginary part does not show a relaxation peak as the relaxation time of samples is very short. The frequency dependence of electrical modulus has also been investigated. The real part of electrical modulus (M ' (f)) is an indicative of negligible electrode polarization phenomenon in the test material. The behavior of the imaginary part of frequency dependent electrical modulus (M '' (f)) exhibit that the dielectric relaxation process is usually not frequency-activated state. Dielectric relaxation process occurs spontaneously due to the hopping mechanism of charge carriers.en_US
dc.identifier.doi10.1007/s00289-018-2657-7en_US
dc.identifier.endpage5716en_US
dc.identifier.issn0170-0839
dc.identifier.issn1436-2449
dc.identifier.issue11en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage5701en_US
dc.identifier.urihttps://doi.org/10.1007/s00289-018-2657-7
dc.identifier.urihttps://hdl.handle.net/20.500.12684/4796
dc.identifier.volume76en_US
dc.identifier.wosWOS:000487100600013en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofPolymer Bulletinen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCryogelen_US
dc.subjectN-Methacryloly-(l)-cysteine methyl esteren_US
dc.subjectIon-imprintingen_US
dc.subjectMolecular imprintingen_US
dc.subjectPolymersen_US
dc.subjectDielectric propertiesen_US
dc.subjectElectrical modulusen_US
dc.titleThe comparative investigation on synthesis, characterizations of silver ion-imprinting and non-imprinting cryogels, their impedance spectroscopies and relaxation mechanismsen_US
dc.typeArticleen_US

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