Improved processing of thermotropic liquid crystalline polyesters
Article first published online: 9 MAR 2003
Copyright © 1983 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 28, Issue 5, pages 1805–1810, May 1983
How to Cite
Demartino, R. N. (1983), Improved processing of thermotropic liquid crystalline polyesters. J. Appl. Polym. Sci., 28: 1805–1810. doi: 10.1002/app.1983.070280522
- Issue published online: 9 MAR 2003
- Article first published online: 9 MAR 2003
- Manuscript Accepted: 28 DEC 1982
- Manuscript Received: 18 NOV 1982
A series of thermotropic liquid crystalline polyesters based on p-hydroxybenzoic acid, terephthalic acid, 2,6-dihydroxynaphthalene and containing small amounts of either Bisphenol A, 2,7-dihydroxynaphthalene, or polyethylene terephthalate (PET) as comonomers were prepared. The latter three materials were investigated as a means of lowering the spinning temperature of the base polymer without sacrificing properties. Samples containing 1–2.5% Bisphenol A or 2.5–5% 2,7-dihydroxynaphthalene retained most of the properties (modulus fell slightly), but spinning temperature reduction was minimal. Polymers containing 2.5–5% PET retained full properties at spinning temperatures 60–80°C below the control.