New poly(4-chloro)maleimides — II. Synthesis and characterization of poly[amido-amino-(4-chloro)-maleimides] and poly(amido-aspartimides)

New poly[(N-amido)-3-amino-4-chloro]maleimides and poly(amido-aspartimides) were synthesized by the reaction of N-(4-chlorocarbonyl-phenyl)-3,4-dichloromaleimide (3) and N-(4-chlorocarbonylphenyl)maleimide (2) with various diamines. The structures of the resulting polymers were confirmed by IR and elemental analyses. A series of model compounds was synthesized to facilitate confirmation of the polymer structures. The polymers possess inherent viscosities in the range 0.12-0.33 d1/g, good solubility in aprotic dipolar solvents, and 5% weight loss at temperatures above 290°C.