Restricted accessResearch articleFirst published online 2001-12
New Poly(4-Dichloro)Maleimides: III. Synthesis and Characterization of Poly[Ether-Ester-Azomethine-(4-Chloro) Maleimides] and Poly(Azomethin Ester-Aspartimides)
New poly[(N-ester-azo)-3-ether-4-chloro)maleimides] and poly(azomethin-ester-aspartimides) were synthesized by the reaction of N-[4-(formylphenoxy carboxylphenyl)]-3-(4-formylphenoxy)-4-chloromaleimide (3a) or N-[4-formylphenoxycarbonylphenyl)maleimide (3b) with various diamines. IR and elemental analyses confirmed the structures of the resulting polymers. A series of model compounds were synthesized to facilitate confirmation of the polymer structures. The polymers possess inherent viscosities in the range 0.17–0.42 dl g−1, solubility in aprotic dipolar solvents and 5% weight loss at temperatures above 300 °C.
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