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Relationship between the chain fold period in poly(ethylene terephthalate) and the crystallization temperature
Author(s) -
Włochowicz Andrzej,
Przygocki Władysław
Publication year - 1973
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.1973.070170416
Subject(s) - poly ethylene , crystallization , materials science , ethylene , melting temperature , diffraction , melting point , period (music) , surface energy , polymer chemistry , crystallography , chemical engineering , composite material , chemistry , optics , organic chemistry , physics , engineering , catalysis , acoustics
The dependence of the fold period in poly(ethylene terephthalate) (PET) crystals on overcooling was investigated by the small‐angle x‐ray diffraction method, for samples crystallized at 150°C to 260°C. The equilibrium melting point T m , determined simultaneously, was 278°C ± 2°C. Using these results, the surface free energy σ e was calculated.