Di-magnesium and zinc catalysts for the copolymerization of phthalic anhydride and cyclohexene oxide

文献情報

出版日 2014-07-15

DOI 10.1039/C4PY00748D

インパクトファクター 5.582

著者

Prabhjot K. Saini, Charles Romain, Yunqing Zhu, Charlotte K. Williams

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要旨

Two new homogeneous dinuclear catalysts for the ring-opening copolymerization of phthalic anhydride (PA)/cyclohexene oxide (CHO) and the terpolymerization of phthalic anhydride (PA)/cyclohexene 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.

掲載誌

Polymer Chemistry

CiteScore: 8.6

自己引用率: 7.3%

年間論文数: 457

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Di-magnesium and zinc catalysts for the copolymerization of phthalic anhydride and cyclohexene oxide

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