Synonym(s): Poly(bisphenol A- co -4-nitrophthalic anhydride- co -1,3-phenylenediamine); PEI; Poly(bisphenol A anhydride- co -1,3-phenylenediamine); Poly(bisphenol A dianhydride- co -1,3-phenylenediamine); Poly(ether imide); Poly-[2,2'bis(4-(3,4-dicarboxyphenoxy)phenylpropane)-1,3-phenylene...