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Joint effects of long-chain branching and specific nucleation on morphology and thermal properties of polypropylene blends

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dc.title Joint effects of long-chain branching and specific nucleation on morphology and thermal properties of polypropylene blends en
dc.contributor.author Gajzlerová, Lenka
dc.contributor.author Navrátilová, Jana
dc.contributor.author Ryzí, Adriana
dc.contributor.author Slaběňáková, Tereza
dc.contributor.author Čermák, Roman
dc.relation.ispartof Express Polymer Letters
dc.identifier.issn 1788-618X Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2020
utb.relation.volume 14
utb.relation.issue 10
dc.citation.spage 952
dc.citation.epage 961
dc.type article
dc.language.iso en
dc.publisher BME-PT and GTE
dc.identifier.doi 10.3144/expresspolymlett.2020.77
dc.relation.uri https://www.expresspolymlett.com/letolt.php?file=EPL-0010572&mi=c
dc.subject polymer blends and alloys en
dc.subject polypropylene en
dc.subject long-chain branching en
dc.subject specific nucleation en
dc.subject thermal properties en
dc.description.abstract The influence of long-chain branching and specific β-nucleation on polymorphic composition, melting and crystallization, and morphology of polypropylene blends were investigated by wide-angle X-ray scattering, differential scanning calorimetry, and scanning electron microscopy. Linear polypropylene and long-chain branched polypropylene were used for the preparation of blends in various proportions. N,N′-dicyclohexylnaphthalene-2,6-dicarboxamide was introduced (0 or 0.03 wt%) as a β-specific nucleating agent into prepared blends. It was found that LCB-PP strongly induces γ-phase formation in the blends and suppresses the nucleation activity of a β-specific nucleating agent. Blends containing a predominant amount of α-and γ-phases showed higher thermodynamic stability within melting, as compared to the samples rich in β-phase. During crystallization, LCB-PP in the blends increases nucleation density by self-seeding effect, manifesting itself in the shift of crystallization temperature. β-phase in the blends is distinctly separated in spherulites, while α-and γ-phases coexist on the lamellae level. © 2020, BME-PT and GTE. All rights reserved. en
utb.faculty Faculty of Technology
dc.identifier.uri http://hdl.handle.net/10563/1009833
utb.identifier.scopus 2-s2.0-85088902742
utb.identifier.wok 000566773200005
utb.source j-scopus
dc.date.accessioned 2020-08-13T13:10:36Z
dc.date.available 2020-08-13T13:10:36Z
dc.description.sponsorship Operational Program for Research, Development, and Education; European UnionEuropean Union (EU) [CZ.02.2.69/0.0/0.0/16_027/0008464]; [IGA/CPS/2018/006]; [IGA/CPS/2019/002]
utb.contributor.internalauthor Gajzlerová, Lenka
utb.contributor.internalauthor Navrátilová, Jana
utb.contributor.internalauthor Ryzí, Adriana
utb.contributor.internalauthor Slaběňáková, Tereza
utb.contributor.internalauthor Čermák, Roman
utb.fulltext.affiliation L. Gajzlerova*, J. Navratilova, A. Ryzi, T. Slabenakova, R. Cermak Tomas Bata University in Zlin, Faculty of Technology, Vavreckova 275, 760 01 Zlin, Czech Republic * Corresponding author, e-mail: lgajzlerova@utb.cz
utb.fulltext.dates Received 6 January 2020; accepted in revised form 22 March 2020
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utb.fulltext.sponsorship This article was written with the support of Operational Program for Research, Development, and Education, co-funded by the European Union, within the framework of the project ‘International Mobility of Researchers of TBU in Zlín’ (Reg. number: CZ.02.2.69/0.0/0.0/16_027/0008464) and by the internal grant agency of the projects IGA/CPS/2018/006 and IGA/CPS/2019/002. The authors kindly acknowledge to Jirina Dohnalova for her help with sample preparation and testing.
utb.wos.affiliation [Gajzlerova, L.; Navratilova, J.; Ryzi, A.; Slabenakova, T.; Cermak, R.] Tomas Bata Univ Zlin, Fac Technol, Vavreckova 275, Zlin 76001, Czech Republic
utb.scopus.affiliation Tomas Bata University in Zlin, Faculty of Technology, Vavreckova 275, Zlin, 760 01, Czech Republic
utb.fulltext.projects CZ.02.2.69/0.0/0.0/16_027/0008464
utb.fulltext.projects IGA/CPS/2018/006
utb.fulltext.projects IGA/CPS/2019/002
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