Journal of Thermal Analysis and Calorimetry

, Volume 95, Issue 1, pp 221–227 | Cite as

Isothermal and non-isothermal crystallisation kinetics of pCBT and PBT

Polymers as studied by DSC


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.


Avrami cyclic butylene terephthalate (CBT, pCBT) isothermal crystallisation Kissinger non-isothermal crystallisation Ozawa poly(butylene terephthalate) (PBT) 


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© Springer Science+Business Media, LLC. 2009

Authors and Affiliations

  1. 1.Institute for Composite Materials (IVW GmbH)Technical University, KaiserslauternKaiserslauternGermany

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