期刊
MACROMOLECULES
卷 52, 期 15, 页码 5652-5657出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.macromol.9b00989
关键词
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资金
- National Natural Science Foundation of China (NSFC) [21690073]
- Program for Changjiang Scholars and Innovative Research Team in University [IRT-17R14]
The ring-opening alternating copolymerization of the wide availability of epoxides and anhydrides is a powerful route to prepare functionalized polyesters with extraordinary properties. However, to date, the copolymerization of less reactive trans-internal epoxide with cyclic anhydrides has remained relatively unexplored. Herein, we report the development of robust dinuclear chromium catalysts for the alternating copolymerization of trans-internal epoxides with cyclic anhydrides, affording the corresponding polyesters with a completely alternating structure. The use of chiral trans-internal epoxide exclusively led to the formation of stereoregular polyesters, two of which are typical semicrystalline materials with high melting temperatures.
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