期刊
POLYMER CHEMISTRY
卷 5, 期 20, 页码 6068-6075出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4py00748d
关键词
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资金
- EPSRC [EP/K014070/1, EP/K035274/1, EP/L017393/1]
- Grantham Institute for Climate Change and EIT Climate KIC
- Engineering and Physical Sciences Research Council [EP/K035274/1, EP/C544838/1, EP/C544846/1, EP/L017393/1, EP/K014676/1] Funding Source: researchfish
- EPSRC [EP/L017393/1, EP/K014676/1, EP/K035274/1] Funding Source: UKRI
Two new homogeneous dinuclear catalysts for the ring-opening copolymerization of phthalic anhydride (PA)/cyclohexene oxide (CHO) and the terpolymerization of phthalic anhydride (PA)/cyctohexene oxide (CHO)/carbon dioxide (CO2) are reported. The catalysts are a di-magnesium (1) and a di-zinc complex (2), both are coordinated by the same macrocyclic ancillary ligand. Both catalysts show good polymerization control and activity (TOF = 97 (1) and 24 (2) h(-1)), with the di-magnesium complex (1) being approximately four times faster compared to the di-zinc (2) analogue. Their relative reactivity is closely related to that observed for well documented chromium salen/porphyrin catalysts. However, these results represent the first example of a well-defined magnesium catalyst which may be advantageous in terms of obviating use of co-catalysts, low cost, lack of colour and redox chemistry.
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