| 摘要 |
Wholly aromatic polyesters based on isophthalic acid, terephthalic acid, p-hydroxybenzoic acid, hydroquinone and an arylene diol, e.g. 4,4'-biphenol are described. The materials displayed are excellent overall combination of mechanical and thermal properties. Their melting points and heat distortion temperatures (264 psi) are at least about 260 DEG C. and 260 DEG C., respectively. These novel polymers can be melt-fabricated using standard injection molding, extrusion, and melt spinning techniques and yield fabricated articles with good surface characteristics.
|
