Journal
INORGANIC CHEMISTRY
Volume 55, Issue 13, Pages 6520-6524Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.6b00639
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Funding
- National Natural Science Foundation of China [21174095, 21372172, 21402135]
- Major Research Project of the Natural Science of the Jiangsu Higher Education Institutions [14KJA150007]
- China Postdoctoral Science Foundation [2013M541712]
- Research Foundation of Education Bureau of Hunan Province [15B095]
- Hunan Provincial Natural Science Foundation of China [2016JJ4035]
- PAPD
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Dinuclear aluminum methyl complexes stabilized by piperidyl-phenolato ligands were prepared and characterized. The ring-opening polymerizations of cyclohexene oxide (CHO) and propylene oxide (PO) initiated by dinuclear complexes and mononuclear analogues were investigated and compared. Enhanced activity of dinuclear complexes compared to that of mononuclear analogues in both the ring-opening polymerization of CHO and PO proves the synergistic interaction of two Al centers in the former. End-group analysis of oligomers by MALDI-TOF mass spectrometry confirms the role of methyl groups as initiating groups. A bimetallic mechanism is proposed, in which the cooperation of two Al centers are involved in polymerization processes.
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