期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 57, 期 51, 页码 16893-16897出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201810245
关键词
aluminium salen catalysts; block polyesters; ring-opening copolymerization; ring-opening polymerization; switch catalysis
资金
- EPSRC [EP/L017393/1, EP/K014668/1]
- EPSRC [EP/L017393/1, EP/K014668/1] Funding Source: UKRI
Switchable polymerisation catalysis enables block polymer sequence selectivity from monomer mixtures, resulting in the formation of multiblock polyesters. The aluminium salphen catalyst switches between two different polymerisation mechanisms and selectively enchains mixtures of commercially available monomers: lactide, phthalic anhydride, and propene oxide. Sequential monomer mixture additions yield multi-block polyesters featuring 3, 7, 11, 15, 19, 23, and 27 blocks. The unparalleled catalytic selectivity can be used to access completely new multi-block polyesters relevant for future applications.
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