Chemoselective Polymerizations from Mixtures of Epoxide, Lactone, Anhydride, and Carbon Dioxide

Charles Romain*, Yunqing Zhu, Paul Dingwall, Shyeni Paul, Henry S. Rzepa, Antoine Buchard, Charlotte K. Williams

*Corresponding author for this work

Research output: Contribution to journalArticle

75 Citations (Scopus)
109 Downloads (Pure)

Abstract

Controlling polymer composition starting from mixtures of monomers is an important, but rarely achieved, target. Here a single switchable catalyst for both ring-opening polymerization (ROP) of lactones and ring-opening copolymerization (ROCOP) of epoxides, anhydrides, and CO2 is investigated, using both experimental and theoretical methods. Different combinations of four model monomers - ϵ-caprolactone, cyclohexene oxide, phthalic anhydride, and carbon dioxide - are investigated using a single dizinc catalyst. The catalyst switches between the distinct polymerization cycles and shows high monomer selectivity, resulting in block sequence control and predictable compositions (esters and carbonates) in the polymer chain. The understanding gained of the orthogonal reactivity of monomers, specifically controlled by the nature of the metal-chain end group, opens the way to engineer polymer block sequences.

Original languageEnglish
Pages (from-to)4120-4131
JournalJournal of the American Chemical Society
Volume138
Issue number12
Early online date22 Mar 2016
DOIs
Publication statusPublished - 20 Apr 2016

Fingerprint

Anhydrides
Epoxy Compounds
Lactones
Carbon Dioxide
Polymerization
Carbon dioxide
Polymers
Monomers
Catalysts
Carbonates
Ring opening polymerization
Esters
Metals
Chemical analysis
Copolymerization
Block copolymers
Switches
Engineers
Oxides

Cite this

Romain, Charles ; Zhu, Yunqing ; Dingwall, Paul ; Paul, Shyeni ; Rzepa, Henry S. ; Buchard, Antoine ; Williams, Charlotte K. / Chemoselective Polymerizations from Mixtures of Epoxide, Lactone, Anhydride, and Carbon Dioxide. In: Journal of the American Chemical Society. 2016 ; Vol. 138, No. 12. pp. 4120-4131.
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Chemoselective Polymerizations from Mixtures of Epoxide, Lactone, Anhydride, and Carbon Dioxide. / Romain, Charles; Zhu, Yunqing; Dingwall, Paul; Paul, Shyeni; Rzepa, Henry S.; Buchard, Antoine; Williams, Charlotte K.

In: Journal of the American Chemical Society, Vol. 138, No. 12, 20.04.2016, p. 4120-4131.

Research output: Contribution to journalArticle

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