Premium
Rheological and mechanical properties of thermotropic polyesters with long flexible spacers in the main chain
Author(s) -
Shin Boo Young,
Chung In Jae,
Kim Bong Shik
Publication year - 1994
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.760341202
Subject(s) - thermotropic crystal , materials science , ultimate tensile strength , polymer , rheology , composite material , polyester , mesophase , glass transition , modulus , monomer , polymerization , liquid crystalline , liquid crystal , polymer chemistry , optoelectronics
Abstract Linear thermotropic liquid crystalline polymers based on two bisphenol monomers and terephthaloyldichloride were prepared via melt polymerization. Fibers from liquid crystalline polymers were spun above the mesophase transition temperature. In this work, the mechanical and morphological properties of fibers based on such polymers were studied. High values of tensile strength and tensile modulus were obtained, and we tried to prove these high mechanical properties quantitavely by using rheological properties of these polymers and morphology of their fibers. These values were varied by the take‐up speed.