Pyridine series

2,2-Bis[4-(4-aminophenoxy)phenyl] -hexafluoropropanane (HFBAPP)

2,2'-Bis(4-aminophenoxyphenyl) propane (BAPP)

2,2-Bis(3-amino-4-hydroxyphenyl) -hexafluoropropane (Bis-AP-AF/6FAP)

2,2'-Bis(trifluoromethyl)-4,4'- diaminodiphenyl ether (6FODA)

2,3,3,,4’-Tetracarboxydiphenyl oxide dianhydride (α-ODPA)

4,4'-Oxydiphthalic anhydride (ODPA)

2,3,3',4'-BiphenyLtetracarboxylic (α-BPDA)

3,3',4,4'-Biphenyltetracarboxylic dianhydride (BPDA)

3,3',4,4'-Benzophenonetetracarboxyl ic dianhydride (BTDA）