The new method for the one-step synthesis of semiaromatic polyamides bearing primary aromatic amine groups in the repeating units is presented. Various aliphatic and aromatic diamines were used: 2,2'-(ethylenedioxy)bis(ethylamine) (3a), Jeffamine ED-600 (3b), 4,4'-oxidianiline (3c), and p-phenylenediamine (3d). They react with bis(N-carboxyanhydrides) of aromatic beta-amino acid (N-unsubstituted bis(benzoxazine-2,4-diones)) yielding the corresponding semiaromatic polyamides (4a-4c). The, obtained free, amino groups were modified with 2-isocyanatoethyl methacrylate. These methacryl-functionalized polyamides can be cross-linked in the presence of N,N-dimethylarylamide via free radical polymerization.