TY - JOUR
T1 - Zinc versus Magnesium
T2 - Orthogonal Catalyst Reactivity in Selective Polymerizations of Epoxides, Bio-derived Anhydrides and Carbon Dioxide
AU - Saini, Prabhjot K.
AU - Fiorani, Giulia
AU - Mathers, Robert T.
AU - Williams, Charlotte K.
N1 - Publisher Copyright:
© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2017/3/28
Y1 - 2017/3/28
N2 - Developing selective polymerizations from complex monomer mixtures is an important challenge. Here, dinuclear catalysts allow selective polymerization from mixtures of sterically hindered tricyclic anhydrides, carbon dioxide and epoxides to yield well-controlled copoly(ester-carbonates). Surprisingly, two very similar homogeneous catalysts differing only in the central metal, zinc versus magnesium, show very high but diametrically opposite monomer selectivity. The selectivity is attributed to different polymerization kinetics and to steric factors associated with the anhydrides.
AB - Developing selective polymerizations from complex monomer mixtures is an important challenge. Here, dinuclear catalysts allow selective polymerization from mixtures of sterically hindered tricyclic anhydrides, carbon dioxide and epoxides to yield well-controlled copoly(ester-carbonates). Surprisingly, two very similar homogeneous catalysts differing only in the central metal, zinc versus magnesium, show very high but diametrically opposite monomer selectivity. The selectivity is attributed to different polymerization kinetics and to steric factors associated with the anhydrides.
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U2 - 10.1002/chem.201605690
DO - 10.1002/chem.201605690
M3 - Article
C2 - 28295663
AN - SCOPUS:85015203966
SN - 0947-6539
VL - 23
SP - 4260
EP - 4265
JO - Chemistry - A European Journal
JF - Chemistry - A European Journal
IS - 18
ER -