STRUCTURE-PROPERTY RELATIONSHIPS IN PMR-TYPE POLYIMIDE RESINS .1. NOVEL ANTHRAQUINONE-BASED PMR RESINS

Novel aromatic polyimides prepared via the polymerization of monomeric reactants (PMR) approach and incorporating anthraquinone diamines in the main chain have been characterized. Imidization and crosslinking r eaction profiles have been delineated by d.m.t.a. and the high-tempera ture mechanical and thermal properties of the thermoset resins examine d. Elevated glass transition temperatures (> 300-degrees-C) are appare nt in some resins while impairment of mechanical integrity is not evid ent below 450-degrees-C. All resins show good thermal and thermo-oxida tive stability.