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Poly(ethylene terephthalate)/polyarylate blends: Influence of interchange reactions on the melting behavior of poly(ethylene terephthalate)
Author(s) -
Eguiazábal J. I.,
Cortázar M.,
Iruin J. J.
Publication year - 1991
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1991.070420221
Subject(s) - poly ethylene , ethylene , materials science , crystallization , isothermal process , polymer chemistry , chemical engineering , recrystallization (geology) , melting temperature , polyethylene terephthalate , composite material , organic chemistry , chemistry , thermodynamics , catalysis , paleontology , physics , biology , engineering
The influence of the interchange reactions of poly(ethylene terephthalate) (PET)/polyarylate (PAr) blends on the melting behavior of isothermally crystallized PET has been studied. PET shows three melting endotherms in the pure state and also when mixed with PAr. These endotherms are explained in terms of primary and secondary crystallization processes as well as recrystallization during the calorimetric scan. It is also shown that interchange reactions hinder the crystallization processes of PET.