Synthesis, characterization, and polymerization of bismaleimides containing ester groups in the backbone and chlorine atoms

New chlorinated bismaleimides with ester units were synthesized by the reac tion of 3(4)-maleimido benzoic acid chloride [3(4)-MBAC] with 2,2-bis(3,5-d ichloro-4-hydroxy-phenyl)-pro-pan and 2,2-bis(3,5-dichloro-4-ethanol phenox y)propan using chloroform as solvent and triethylamine (TEA) as acid accept or. The bismaleimides were polymerized with 1,2-bis [2-(4-aminophenoxy)etho xy]ethane (BAPEE). The relationship between the structure and the propertie s of the obtained bismaleimides and reaction conditions for the synthesis o f resin were studied. The properties of these monomers and polymers were co mpared with those of monomer and polymer derived from bisphenol A.