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Issue 3, 2017
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Switchable catalytic processes involving the copolymerization of epoxides and carbon dioxide for the preparation of block polymers

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Abstract

This minireview's primary focus is to review recent studies from my research program on the development of one-pot, two-step processes for the synthesis of di- and tri-block polymers. In all of these prepared polymeric materials at least one component is a polycarbonate derived from the copolymerization of CO2 and epoxides. Synthetic methodology for the preparation of polycarbonate diols of well-defined molecular weights with narrow polydispersities are presented using (salen)CoX/onium salt catalyst systems. These polyols were subsequently utilized in the synthesis of di-and tri-block polylactide/polycarbonate or polyphosphoester/polycarbonate polymers employing organocatalysts. In addition, the introduction of these polyols to a second epoxide/CO2 copolymerization process provided block polycarbonate materials. Of particular interest, the first or second epoxide monomer incorporated into the copolymer can possess vinyl groups for postpolymerization modification by thiol–ene chemistry. These degradable polymeric materials have significant potential for use in biomedical applications.

Graphical abstract: Switchable catalytic processes involving the copolymerization of epoxides and carbon dioxide for the preparation of block polymers

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Publication details

The article was received on 09 Jan 2017, accepted on 07 Feb 2017 and first published on 09 Feb 2017


Article type: Review Article
DOI: 10.1039/C7QI00013H
Citation: Inorg. Chem. Front., 2017,4, 412-419
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    Switchable catalytic processes involving the copolymerization of epoxides and carbon dioxide for the preparation of block polymers

    D. J. Darensbourg, Inorg. Chem. Front., 2017, 4, 412
    DOI: 10.1039/C7QI00013H

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