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Nucleation‐Driven Kinetics of Poly(ethylene terephthalate) Melting
Author(s) -
Vyazovkin Sergey,
Yancey Benjamin,
Walker Kahleah
Publication year - 2013
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201300443
Subject(s) - nucleation , kinetics , ethylene , activation energy , poly ethylene , melting temperature , kinetic energy , thermodynamics , materials science , polymer chemistry , surface energy , chemistry , composite material , organic chemistry , physics , catalysis , quantum mechanics
The kinetics of poly(ethylene terephthalate) melting are studied by DSC and treated in the framework of a nucleation kinetic model. The study focuses on the temperature dependence of the effective activation energy of melting. A theoretical dependence is derived from the model and an experimental one from the Kissinger plot. It is demonstrated that the theoretical dependence satisfactorily predicts the experimental one and fitting the former to the latter can be used for estimating the surface free energy of a nucleus.