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Issue 24, 2016
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Light-mediated curing of CO2-based unsaturated polyethercarbonates via thiol–ene click chemistry

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Abstract

Facile cross-linking of CO2-based unsaturated polyethercarbonates with polymercaptanes via thiol–ene click chemistry makes them highly interesting sustainable pre-polymers for material applications as elastomers and sealants. CO2-Based unsaturated polyethercarbonates, characterised by a glass transition temperature well below room temperature, were obtained by convenient one-pot synthesis. Terpolymerization of CO2 with propylene oxide and allylglycidylether provided the polyethercarbonates with a defined number of pendant unsaturated bonds along the backbone of the polymer chain. The time-dependent viscoelastic behaviour during cross-linking with pentaerythritol tetrakis(3-mercaptopropionate) revealed faster curing with increasing content of double bonds in the pre-polymer. In parallel, the higher cross-linking density provided access to more rigid elastic materials.

Graphical abstract: Light-mediated curing of CO2-based unsaturated polyethercarbonates via thiol–ene click chemistry

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Publication details

The article was received on 15 Mar 2016, accepted on 23 May 2016 and first published on 24 May 2016


Article type: Paper
DOI: 10.1039/C6PY00458J
Citation: Polym. Chem., 2016,7, 4121-4126

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    Light-mediated curing of CO2-based unsaturated polyethercarbonates via thiol–ene click chemistry

    M. A. Subhani, B. Köhler, C. Gürtler, W. Leitner and T. E. Müller, Polym. Chem., 2016, 7, 4121
    DOI: 10.1039/C6PY00458J

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