PROCESSABLE HEAT-RESISTANT POLYAMIDES

Date Issued
1993
Author(s)
JOSEPH, KA
SRINIVASAN, M
Abstract
Aromatic polyamides containing sulpide, sulphone and ketone groups were prepared by the direct polycondensation of bis(p-phenylthio)dibenzoic acid, 4,4'-{sulphonylbis(p-phenylthio)}-dibenzoic acid and 4,4'-{carbonylbis(p-phenylthio)}dibenzoic acid with various aromatic diamines in triphenylphosphite-pyridine systems. The polymers were characterized by inherent viscosity, i.r. spectra, elemental analysis, solubility, differential scanning calorimetry, thermogravimetry and wide angle X-ray diffractometry.
Volume
29