Methods of correlation NMR spectroscopy in the study of the structure of hyperbranched polyester Boltorn H40

A combination of one-dimensional and 2D-correlation NMR spectroscopy methods is developed to study the structure of hyperbranched polyesters. The proportions of terminal, linear and dendritic monomeric units are determined for BOLTORN H40 polyester- 31%,53% and 16%, respectively. The high degree of branching of the BOLTORN H40 structure, which is 0.47, makes it possible to refer this polymer to a class of hyperbranched polyesters that can form micellar nanocontainers.