ИСТИНА

Materials based on aliphatic polyesters attract much attention due to their biodegradation and biocompatibility. The ring opening polymerization using metal complexes as catalysts is the most usable method for synthesis of such materials due to reproducibility and reaction control. Development of new catalysts for the process discussed is the actual problem for modern organometallic chemistry. In our work we synthesized new aluminum complexes containing functionalized unsaturated alcoholates and/or iminophenolates as ligands. The structures of the compounds obtained were confirmed by NMR spectroscopy and mass-spectrometry and in several cases by X-ray analysis. These compounds were used as catalysts in ring opening polymerization of cyclic lactones. In the course of polymerization the unsaturated group is transferred to the end of polymer chain. This synthetic strategy allows us to obtain macromonomers based on biodegradable materials with high degree of functionalization.