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Die Hyperaktivität von Dizinkkomplexen bei der Ringöffnungspolymerisation (ROP) von racemischem Lactid (LA) wurde untersucht. In der Zuschrift auf S. 8822 ff. zeigen S. Brooker, C. K. Wiliams et al., dass “gefaltete” makrocyclische Katalysatoren bei der Umwandlung von Lactid (aus Mais) in Polylactid (PLA) eine bis zu 5500‐mal höhere Umsatzfrequenz (60 000 h−1) haben als ihre “planaren” Analoga. Die...
Understanding how to moderate and improve catalytic activity is critical to improving degradable polymer production. Here, di‐ and monozinc catalysts, coordinated by bis(imino)diphenylamido ligands, show remarkable activities and allow determination of the factors controlling performance. In most cases, the dizinc catalysts significantly out‐perform the monozinc analogs. Further, for the best dizinc...
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