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dc.creatorKuljanin-Jakovljević, Jadranka Ž.
dc.creatorRadosavljević, Aleksandra
dc.creatorSpasojević, Jelena P.
dc.creatorCarevic, Milica V.
dc.creatorMitrić, Miodrag
dc.creatorKačarević-Popović, Zorica M.
dc.date.accessioned2018-03-01T17:15:23Z
dc.date.available2018-03-01T17:15:23Z
dc.date.issued2017
dc.identifier.issn0969-806X (print)
dc.identifier.urihttp://vinar.vin.bg.ac.rs/handle/123456789/1321
dc.description.abstractIn this study, the nanocomposites based on semiconductor lead sulfide (PbS) nanoparticles and poly (vinyl alcohol) (PVA) were investigated. The gamma irradiation induced in situ incorporation of PbS nanoparticles in crosslinked polymer network i.e. PVA hydrogel was performed. PVA hydrogel was previously obtained also under the influence of gamma irradiation. UV Vis absorption and X-ray diffraction measurements were employed to investigate optical and structural properties of PbS nano particles, respectively, and obtained results indicates the presence of nanoparticles with approximately 6 nm in diameter and face centered cubic rock-salt crystal structure. The porous morphology was confirmed by scanning electron microscopy. Swelling data revealed that investigated hydrogels (PVA and PbS-PVA nanocomposite) shows non-Fickian diffusion, indicating that both diffusion and polymer relaxation processes controlled the fluid transport. The values of diffusion coefficients have an order of magnitude 10(-9) cm(2)/s (typical values for water diffusion in polymers) and the best fit with the experimental results showed the Etters approximation. Comparing the thermal properties of PbS-PVA xerogel nanocomposite with PVA xerogel it was observed that incorporation of PbS nanoparticles in crosslinked PVA matrix just slightly enhanced the thermal stability of nanocomposite. (C) 2016 Elsevier Ltd. All rights reserved.en
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45005/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172056/RS//
dc.rightsrestrictedAccessen
dc.sourceRadiation Physics and Chemistryen
dc.subjectGamma irradiationen
dc.subjectPbS-PVA hydrogel nanocompositeen
dc.subjectOptical propertiesen
dc.subjectStructural propertiesen
dc.subjectSwelling propertiesen
dc.subjectThermal propertiesen
dc.titleGamma irradiation induced in situ synthesis of lead sulfide nanoparticles in poly(vinyl alcohol) hydrogelen
dc.typearticleen
dcterms.abstractЦаревиц, Милица В.; Радосављевић Aлександра; Куљанин-Јаковљевиц, Јадранка З.; Спасојевић Јелена; Митрић Миодраг; Качаревић-Поповић Зорица М;
dc.citation.volume130
dc.citation.spage282
dc.citation.epage290
dc.identifier.wos000388777200043
dc.identifier.doi10.1016/j.radphyschem.2016.09.003
dc.identifier.scopus2-s2.0-84988030209


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