Abstract
In a more elaborate article, it was described that blends of poly(ethylene terephthalate) (PET), a liquid crystalline copolyester, and small amounts of a liquid crystalline polyhydroxyether showed an increase in tensile modulus and strength compared to the blends without polyhydroxyether. The results were obtained using a polyhydroxyether composed of 75 mol % biphenyl and 25 mol % phenyl units. In this article, the use of two other types of polyhydroxyether is described, one based on the α-methylstilbene unit and the other based on bisphenol A. Addition of either of these polyhydroxyethers to the PET/thermotropic liquid crystalline polymer (TLCP) blends increased the tensile modulus and strength of extruded fibers in a similar way as upon addition of the liquid crystalline polyhydroxyether. Improvement of the viscosity ratio and thereby improvement of the fibril formation, by reactions of the functional hydroxyl side groups in the polyhydroxyethers, appears to be the most important factor for the improvement of the mechanical properties. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 71: 1125–1131, 1999
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
