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Physical ageing in poly(ethylene terephthalate) - its influence on cold crystallisation

McGonigle, E.A. and Daly, J.H. and Gallagher, S. and Jenkins, S.D. and Liggat, J.J. and Olsson, I. and Pethrick, R.A. (1999) Physical ageing in poly(ethylene terephthalate) - its influence on cold crystallisation. Polymer, 40 (17). pp. 4977-4982. ISSN 0032-3861

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The relationship between the crystallisation behaviour and physical ageing history of poly(ethylene terephthalate) is reported. It is shown that short term ageing can enhance the subsequent rate of crystallisation, but longer ageing times can retard the crystallisation process. It is suggested that physical ageing favours the formation of ordered domains.