NEW POLY(BISMALEIMIDE-ETHER)S CONTAINING FUNCTIONAL PENDANT CARBOXYLIC GROUPS

New poly(bismaleimide-ether)s with functional pendant groups were synt hesized by Michael addition polymerization of two monomers with functi onality f>2 (DL tartaric acid and methylene-5,5'disalicylic acid) to v arious bismaleimides with flexible groups (N,N'-4,4'-diphenylmethanebi smaleimide, N,N'-4,4'-diphenyletherbismaleimide and N,N'-4,4'-dibenzyl bismaleimide). The polymerization occurred in solution, through the ad dition of the OH groups to the C=C double bond of the maleimide rings. The polymers were obtained in good yields and they were characterized by elemental analysis, IR and H-1 NMR spectra, thermogravimetric anal ysis and viscozimetry.