REACTIONS OF O-DINITRILES OF POLYCARBOXYL IC ACIDS WITH AROMATIC DIAMINES

Experimental data on the interaction of phthalodinitriles and bis(phth alodinitriles) with aromatic diamines are summarised. The dependence o f the reaction mechanism of phthalodinitriles with diamines on the che mical structure of diamines and phthalodinitriles, as well as reaction medium nature, is considered; general ideas on this mechanism are for mulated. The principal regularities of polycondensation of bis(phthalo dinitriles) with diamines are established and possibility is shown for this reaction to be used for preparation of a number of new classes o f heterocyclic polymers containing benzopyrrolic fragments in the chai n.