Abstract
The crystallisation behaviour of in situ polymerised cyclic butylene terephthalates (pCBT) and poly(butylene terephthalate)s (PBT) were studied by differential scanning calorimetry (DSC) both under isothermal and non-isothermal conditions. The crystallisation was analysed by adopting the Avrami, Ozawa and Kissinger methods for the isothermal and non-isothermal crystallisations, respectively. An Avrami exponent n between 2 and 3 was found for the pCBTs whereas the exponent ranged between 3 and 4 for the PBTs. The Ozawa exponent m varied for all materials between 2 and 3. Differences in the crystallisation kinetics were also reflected in the related activation energy data.
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Lehmann, B., Karger-Kocsis, J. Isothermal and non-isothermal crystallisation kinetics of pCBT and PBT. J Therm Anal Calorim 95, 221–227 (2009). https://doi.org/10.1007/s10973-007-8939-1
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DOI: https://doi.org/10.1007/s10973-007-8939-1