Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 95: Issue 1
Isothermal and non-isothermal crystallisation kinetics of pCBT and PBT
Polymers as studied by DSC
Authors:
B. Lehmann Technical University, Kaiserslautern Institute for Composite Materials (IVW GmbH) Erwin Schrödinger Str. 67663 Kaiserslautern Germany

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J. Karger-Kocsis Technical University, Kaiserslautern Institute for Composite Materials (IVW GmbH) Erwin Schrödinger Str. 67663 Kaiserslautern Germany

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Pages:
221–227
Online Publication Date:
20 Sep 2008
Publication Date:
01 Jan 2009
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-007-8939-1
Keywords:
Avrami; cyclic butylene terephthalate (CBT, pCBT); isothermal crystallisation; Kissinger; non-isothermal crystallisation; Ozawa; poly(butylene terephthalate) (PBT)
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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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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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