The focus of this thesis is the catalytic conversion of epoxides and carbon dioxide to linear polycarbonates. A variety of new dinuclear zinc catalysts is synthesized. Applying these complexes in the copolymerization of propylene oxide and CO2 results in conversions below 3%. The reasons for this fact are clarified by various experimental and quantum chemical investigations. However, in case of cyclohexene oxide/CO2 copolymerization the introduction of electron-withdrawing groups into the ligand framework leads to by far the highest turnover frequencies in this research area.
«
The focus of this thesis is the catalytic conversion of epoxides and carbon dioxide to linear polycarbonates. A variety of new dinuclear zinc catalysts is synthesized. Applying these complexes in the copolymerization of propylene oxide and CO2 results in conversions below 3%. The reasons for this fact are clarified by various experimental and quantum chemical investigations. However, in case of cyclohexene oxide/CO2 copolymerization the introduction of electron-withdrawing groups into the ligand...
»