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dc.contributor.authorPajuste, E.
dc.contributor.authorReinholds, I.
dc.contributor.authorVaivars, G.
dc.contributor.authorAntuzevičs, A.
dc.contributor.authorAvotiņa, L.
dc.contributor.authorSprūģis, E.
dc.contributor.authorRossi, Mikko
dc.contributor.authorKettunen, Heikki
dc.contributor.authorMeri, R.M.
dc.contributor.authorKaparkalējs, R.
dc.date.accessioned2022-08-15T08:59:45Z
dc.date.available2022-08-15T08:59:45Z
dc.date.issued2022
dc.identifier.citationPajuste, E., Reinholds, I., Vaivars, G., Antuzevičs, A., Avotiņa, L., Sprūģis, E., Rossi, M., Kettunen, H., Meri, R.M., & Kaparkalējs, R. (2022). Evaluation of radiation stability of electron beam irradiated Nafion® and sulfonated poly(ether ether ketone) membranes. <i>Polymer Degradation and Stability</i>, <i>200</i>, Article 109970. <a href="https://doi.org/10.1016/j.polymdegradstab.2022.109970" target="_blank">https://doi.org/10.1016/j.polymdegradstab.2022.109970</a>
dc.identifier.otherCONVID_150868026
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/82532
dc.description.abstractProton exchange membranes (PEM), which have been commonly used in fuel cells have raised interest for the application in harsh environments involving ionizing radiation. Therefore, radiation stability and ability to sustain their functionality under the radiation environment are of great interest. Within this study, electron beam irradiation in dose range from 50 to 500kGy was used to evaluate the effects of radiation on the physico-chemical and mechanical properties of two types of PEM: commercial Nafion®117 and sulfonated poly(ether-ether-ketone) (SPEEK) with high degree of sulfonation (DS = 0.75±0.5). SPEEK membrane presented higher mechanical and thermal stability compared to that of Nafion® at doses up to 250 kGy, which was evidenced by infrared and electron paramagnetic resonance spectroscopy, thermal analysis, ion chromatography methods. Tensile tests at room temperature and dynamical mechanical analysis of irradiated membranes revealed improved strength, storage modulus at room and elevated temperatures (80°C) for irradiated SPEEK as compared to pristine PEM. For comparison Nafion® exhibited notable deterioration of mechanical properties including elongation at break due to the predominant oxidation and chain scission already at doses exceeding 50 kGy. The study indicated that SPEEK could be perspective replacement of traditional PEM for application in fuel cells exposed to ionising radiation.en
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherElsevier Ltd.
dc.relation.ispartofseriesPolymer Degradation and Stability
dc.rightsCC BY-NC-ND 4.0
dc.subject.otherproton exchange membranes
dc.subject.otherelectron beam
dc.subject.otherionising radiation
dc.subject.otherdegradation
dc.subject.othercrosslinking
dc.subject.otherthermomechanical properties
dc.titleEvaluation of radiation stability of electron beam irradiated Nafion® and sulfonated poly(ether ether ketone) membranes
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-202208154076
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.type.coarhttp://purl.org/coar/resource_type/c_2df8fbb1
dc.description.reviewstatuspeerReviewed
dc.relation.issn0141-3910
dc.relation.volume200
dc.type.versionpublishedVersion
dc.rights.copyright© 2022 The Authors. Published by Elsevier Ltd.
dc.rights.accesslevelopenAccessfi
dc.subject.ysosäteilyfysiikka
dc.subject.ysokalvot (tekniikka)
dc.subject.ysopolymeerit
dc.subject.ysofysikaaliset ominaisuudet
dc.subject.ysoionisoiva säteily
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p11069
jyx.subject.urihttp://www.yso.fi/onto/yso/p22892
jyx.subject.urihttp://www.yso.fi/onto/yso/p926
jyx.subject.urihttp://www.yso.fi/onto/yso/p1174
jyx.subject.urihttp://www.yso.fi/onto/yso/p459
dc.rights.urlhttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.relation.doi10.1016/j.polymdegradstab.2022.109970
dc.type.okmA1


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