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The preparation of oriented morphologies of the thermotropic aromatic copolyester of poly(ethylene terephthalate) and 80 mole percent p‐acetoxybenzoic acid
Author(s) -
Zachariades Anagnostis E.,
Logan John A.
Publication year - 1983
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760231502
Subject(s) - copolyester , thermotropic crystal , materials science , ethylene , crystallinity , rheometer , shearing (physics) , poly ethylene , composite material , polymer chemistry , atmospheric temperature range , polymer , optical microscope , chemical engineering , liquid crystalline , polyester , organic chemistry , rheology , scanning electron microscope , catalysis , chemistry , physics , meteorology , engineering
Highly oriented morphologies of poly(ethylene terephthalate) and 80 mole percent p‐acetoxybenzoic acid were prepared by shearing in an optical plate‐plate rheometer and by melt fiber drawing in a temperature range at which the copolyester was either in the semicrystalline state or liquid crystalline phase. The optical, thermal, and mechanical properties of the oriented films and drawn fibers depended significantly on the processing temperature.