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Thermotropic polyester carbonates. II. Polyester carbonates as high performance fibers
Author(s) -
Lai Y. C.,
Debona B. T.,
Prevorsek D. C.
Publication year - 1988
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.1988.070360406
Subject(s) - thermotropic crystal , polyester , spinning , materials science , tenacity (mineralogy) , yield (engineering) , fiber , composite material , synthetic fiber , polymer chemistry , polymer science , chemical engineering , polymer , liquid crystalline , engineering
The fiber spinning and heat treatments of spun fibers from thermotropic polyester carbonates are described. Thermotropic polyester carbonates derived from t ‐butylhydroquinone, methylhy‐droquinone, diphenyl terephthalate, and diphenyl carbonate in the molar ratios of 50 : 50 : 55 : 45; 50 : 50 : 57.5 : 42.5; can be spun successfully, and after proper heat treatment, yield fibers with tenacity as high as 20 g/denier. Normally the best spinning temperature is 10–20°C above melting.