Аннотация:The method of one-stage catalytic polycyclocondensation according to the B4 + AB schemewas used to synthesize new tetraarm star-shaped oligoimides (SOIs) with terminal amino groupsand a variable average arm´s length. A new tetraamine obtained by condensation of m-phenylenediaminewith a di-Boc derivative of 3,5-diaminobenzoic acid was used as a branchingcenter (B4). 4-(3-Aminophenoxy)phthalic acid was used as the AB heteromonomer. The endamino groups were converted into carboxyl groups by treatment of the resulting reaction SOIswith trimellitic anhydride. The subsequent grafting of an oligoalkylene oxide oligomer witha terminal amino group onto them yielded the stars with block copolymer arms. The chemicaland morphological structure of new block copolymer stars has been studied by IR and 1H NMRspectroscopies, TGA and SEM. It was established by the SEM method that the synthesizedobjects have a two-phase morphology.
