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Inside Cover: Dizinc Lactide Polymerization Catalysts: Hyperactivity by Control of Ligand Conformation and Metallic Cooperativity (Angew. Chem. Int. Ed. 30/2016)
Author(s) -
Theve Arnaud,
Romain Charles,
Bennington Michael S.,
White Andrew J. P.,
Davidson Hannah J.,
Brooker Sally,
Williams Charlotte K.
Publication year - 2016
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201605383
Subject(s) - lactide , cooperativity , catalysis , polymerization , polymer chemistry , ligand (biochemistry) , ring opening polymerization , chemistry , ring (chemistry) , cover (algebra) , metal , organic chemistry , receptor , polymer , mechanical engineering , biochemistry , engineering
The hyperactivity of dizinc catalysts used for the ring‐opening polymerization (ROP) of racemic lactide (LA) was studied. In their Communication on page 8680 ff., S. Brooker, C. K. Williams et al. show that “folded” macrocyclic catalysts have high turnover frequencies (60 000 h −1 ), up to 5500 times those of their “planar” analogues in the conversion of lactide (from corn) into polylactide (PLA). The catalysts also perform well under immortal conditions.