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Nucleation and Self‐Nucleation of Bio‐Based Poly(ethylene 2,5‐furandicarboxylate) Probed by Fast Scanning Calorimetry
Author(s) -
Martino Lucrezia,
Guigo Nathanaël,
van Berkel Jesper Gabriël,
Kolstad Jeffrey John,
Sbirrazzuoli Nicolas
Publication year - 2016
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.201500418
Subject(s) - nucleation , differential scanning calorimetry , materials science , crystallization , isothermal process , annealing (glass) , supercooling , glass transition , amorphous solid , atmospheric temperature range , thermodynamics , calorimetry , ethylene , chemical engineering , polymer , crystallography , chemistry , composite material , organic chemistry , physics , catalysis , engineering
The present work focuses on the influence of nucleation processes on the crystallization of bio‐based poly(ethylene 2,5‐furandicarboxylate) (PEF). Nuclei formation has been studied by means of fast scanning calorimetry (FSC) both when cooling from the melt (nonisothermal conditions) and when annealing at either low‐ or high‐temperatures (isothermal conditions). FSC results show that nucleation on cooling can be prevented by using fast rates allowing to keep the polymer in its amorphous state; whereas cooling at moderate rates results in sample nucleation with a subsequent increase of the crystallization rate. Isothermal pretreatment just above the PEF glass transition temperature ( T g ) results in nuclei formation whose rate decreases when the nucleation temperature approaches PEF T g . On the other hand, annealing below the PEF melting point allows determination of the sample self‐nucleation behavior which occurs in a very narrow temperature range, i.e., between 195 and 198 °C.