A family of bismaleimides (PPS-BMIs) containing flexible oligo(phenylene sulfide) (PPS) segments was prepared from the corresponding monodisperse diamine-terminated oligo(phenylene sulfide)s (PPS-DAs). PPS-BMIs and PPS-DAs formed eutectic mixtures which melted below 200 C. Upon heating above 200 C, chain advancement via Michaeltype addition of PPS.DA to PPS-BMI followed by cross-linking produced networks containing PPS segments. The influence of the PPS segment length on processing, cure reaction, phase transitions, and thermal stability was investigated.
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