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Creep and Dynamic mechanical analysis studies of peroxide-crosslinked ethylene-octene copolymer

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dc.title Creep and Dynamic mechanical analysis studies of peroxide-crosslinked ethylene-octene copolymer en
dc.contributor.author Theravalappil, Rajesh
dc.contributor.author Svoboda (FT), Petr
dc.contributor.author Poongavalappil, Sameepa
dc.contributor.author Svobodová, Dagmar
dc.relation.ispartof Macromolecular Materials and Engineering
dc.identifier.issn 1438-7492 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2012
utb.relation.volume 297
utb.relation.issue 8
dc.citation.spage 761
dc.citation.epage 767
dc.type article
dc.language.iso en
dc.publisher Wiley-VCH Verlag GmbH & Co. en
dc.identifier.doi 10.1002/mame.201100289
dc.subject creep en
dc.subject crosslinking en
dc.subject DMA en
dc.subject ethylene-octene copolymers en
dc.subject peroxides en
dc.description.abstract An ethylene-octene copolymer (EOC) (45 wt% octene) is crosslinked using dicumyl peroxide (DCP). Differential scanning calorimetry (DSC) reveals a very low melting temperature (50 °C). The network density is evaluated by gel content. While 0.2-0.3 wt% of peroxide leads only to a molecular weight increase (samples completely dissolved in xylene), 0.4-0.6 wt% of peroxide caused network formation. High-temperature creep was measured at 70, 120, and 200 °C at three stress levels. At 200 °C and above 0.6 wt% of peroxide, degradation due to chain scission is observed by rubber process analyzer (RPA) and is again supported by creep measurements. Residual strain at 70 °C is found to improve with increasing peroxide level. Dynamic mechanical analysis (DMA) reveals a strong influence of peroxide content on storage modulus and tan δ, in particular in the range 30-200 °C. en
utb.faculty Faculty of Technology
utb.faculty Faculty of Humanities
utb.faculty University Institute
dc.identifier.uri http://hdl.handle.net/10563/1002917
utb.identifier.rivid RIV/70883521:28110/12:43867906!RIV13-MSM-28110___
utb.identifier.rivid RIV/70883521:28150/12:43867906!RIV13-MSM-28150___
utb.identifier.rivid RIV/70883521:28610/12:43867906!RIV13-MSM-28610___
utb.identifier.obdid 43867997
utb.identifier.scopus 2-s2.0-84864719413
utb.identifier.wok 000307219100003
utb.identifier.coden MMENF
utb.source j-scopus
dc.date.accessioned 2012-08-17T12:54:26Z
dc.date.available 2012-08-17T12:54:26Z
utb.ou Centre of Polymer Systems
utb.contributor.internalauthor Theravalappil, Rajesh
utb.contributor.internalauthor Svoboda (FT), Petr
utb.contributor.internalauthor Poongavalappil, Sameepa
utb.contributor.internalauthor Svobodová, Dagmar
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