A fundamental study on photo-oxidative degradation of linear low density polyethylene films at embrittlement

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dc.contributor.authorHsu, YCen_AU
dc.contributor.authorWeir, MPen_AU
dc.contributor.authorTruss, RWen_AU
dc.contributor.authorGarvey, CJen_AU
dc.contributor.authorNicholson, TMen_AU
dc.contributor.authorHalley, PJen_AU
dc.date.accessioned2012-06-18T03:12:31Zen_AU
dc.date.available2012-06-18T03:12:31Zen_AU
dc.date.issued2012-05-25en_AU
dc.date.statistics2012-06-18en_AU
dc.description.abstractFilm embrittlement criteria were determined for photo-oxidative degradation of linear low density polyethylene (LLDPE) films by using a range of characterisation techniques: tensile, high-temperature GPC, MAS-NMR, FTIR-ATR, WAXS and SAXS. The key embrittlement criteria was the loss of 95% elongation at break and the reduction in interlamellar distance, reduced down to approximately 30–50 Å, as a result of recrystallisation of mobile short chain fragments produced from chain scission reaction. Interlamellar thinning correlated well with the changes in double yield points seen in the tensile data, where the absence of the second yield point signified that the tie molecules at the lamellar interface underwent chain scission and could no longer transfer the tensile stress to reach c-axis slip of the lamellar crystals. This was also supported by a reduction in amorphous–lamellar interfacial width with ageing time, extracted from SAXS data using the linear correlation function. Crown Copyright (C) 2012 Published by Elsevier Ltd. All rights reserved.en_AU
dc.identifier.citationHsu, Y. C, Weir, M. P., Truss, R. W., Garvey, C. J., Nicholson, T. M., Halley, P. J. (2012). A fundamental study on photo-oxidative degradation of linear low density polyethylene films at embrittlement. Polymer, 53(12), 2385-2393. doi:10.1016/j.polymer.2012.03.044en_AU
dc.identifier.govdoc4389en_AU
dc.identifier.issn0032-3861en_AU
dc.identifier.issue12en_AU
dc.identifier.journaltitlePolymeren_AU
dc.identifier.pagination2385-2393en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/4339en_AU
dc.identifier.urihttps://doi.org/10.1016/j.polymer.2012.03.044en_AU
dc.identifier.volume53en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectEmbrittlementen_AU
dc.subjectPolyethylenesen_AU
dc.subjectTensile propertiesen_AU
dc.subjectElongationen_AU
dc.subjectCrystalsen_AU
dc.subjectCorrelationsen_AU
dc.titleA fundamental study on photo-oxidative degradation of linear low density polyethylene films at embrittlementen_AU
dc.typeJournal Articleen_AU
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