Isothermal and non-isothermal crystallisation kinetics of pCBT and PBT

PPolymers as studied by DSC

B. Lehmann, J. Karger-Kocsis

Research output: Contribution to journalArticle

25 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)221-227
Number of pages7
JournalJournal of Thermal Analysis and Calorimetry
Volume95
Issue number1
DOIs
Publication statusPublished - Jan 2009

Fingerprint

terephthalate
Crystallization kinetics
butenes
Crystallization
Differential scanning calorimetry
heat measurement
exponents
crystallization
scanning
kinetics
Activation energy
activation energy
terephthalic acid
butylene

Keywords

  • Avrami
  • Cyclic butylene terephthalate (CBT, pCBT)
  • Isothermal crystallisation
  • Kissinger
  • Non-isothermal crystallisation
  • Ozawa
  • Poly(butylene terephthalate) (PBT)

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Condensed Matter Physics

Cite this

Isothermal and non-isothermal crystallisation kinetics of pCBT and PBT : PPolymers as studied by DSC. / Lehmann, B.; Karger-Kocsis, J.

In: Journal of Thermal Analysis and Calorimetry, Vol. 95, No. 1, 01.2009, p. 221-227.

Research output: Contribution to journalArticle

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