Ageing of poly(ethylene terephthalate) and poly(ethylene naphthalate) under moderately accelerated conditions

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13 Citations (Scopus)

Abstract

PEN is thought to have increased thermal and hydrolytic resistance in comparison to PET. However, due to a lack of research, few studies have been published on the degradation of PEN. In our research, we report on the extent of degradation in PET and PEN after ageing under contrasting environments (dry nitrogen, dry air, wet nitrogen, and wet air) at temperatures between 140 degrees C and 190 degrees C. A combination of analysis techniques were employed in order to characterize and track the physical and chemical changes in the aged polyester samples, enabling the effects of temperature, water, and oxygen to be mapped onto the resultant property changes of PET and PEN. The extent of degradation has been shown to differ between both polymers and the dominant degradation mechanism in PET was shown to differ with ageing temperature. (c) 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011

Original languageEnglish
Pages (from-to)4517-4529
Number of pages13
JournalJournal of Applied Polymer Science
Volume124
Issue number6
DOIs
Publication statusPublished - 15 Jun 2012

Keywords

  • poly(ethylene terephthalate)
  • poly(ethylene naphthalate)
  • polymer science

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  • Activities

    • 2 Participation in conference

    Polymer Degradation Discussion Group Conference 2011

    John Liggat (Participant), Annika Alke (Participant), Deborah Todd (Speaker), Louise Turnbull (Speaker), Kimberley Miller (Participant)
    4 Sep 20118 Sep 2011

    Activity: Participating in or organising an event typesParticipation in conference

    Polymer Degradation Discussion Group Conference 2009

    John Liggat (Chair), Deborah Todd (Participant), Alistair Apedaile (Speaker), Louise Turnbull (Participant)
    6 Sep 200910 Sep 2009

    Activity: Participating in or organising an event typesParticipation in conference

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