Tractable azomethine copolymers are difficult to prepare by solution processes. Melt-polymerization techniques have been used to synthesize random, block, and graft azomethine copolymers in which the repeating units correspond to units derived from either A-B monomers or a pair of A-A and B-B monomers. Not all systems yielded tractable copolymers, and these limitations are discussed. The block copolymers are prepared readily by the reaction of appropriate insoluble oligomers with monomers or by the reaction of two different fusible oligomers. The thermal stabilities of the copolymers are high and comparable to azomethine homopolymers.