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Post-polymerisation modification of bio-derived unsaturated polyester resins via Michael additions of 1,3-dicarbonyls

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Publication details

JournalPolymer Chemistry
DateE-pub ahead of print - 22 Jan 2016
DatePublished (current) - 28 Feb 2016
Issue number8
Number of pages9
Pages (from-to)1650-1658
Early online date22/01/16
Original languageEnglish


Post-polymerisation modification of α,β-unsaturated polyesters (UPEs) is useful to deliver polymers with tuneable properties and applications different from their parent backbone. Bio-derivable itaconate unsaturated polyesters, with a range of co-monomers, were modified via a heterogeneously catalysed microwave-assisted Michael addition of pendants, acetylacetone (Hacac) and dimethyl malonate (DMM), to the polymer backbones with very short reaction times. Differential scanning calorimetry analysis showed an increase in the glass-transition temperatures of most of the saturated polyesters considered. Solubility and complexation studies demonstrated metal chelating abilities of the acetylacetone pendant can be retained, even following tethering to a polyester backbone. Additionally, it is demonstrated for the first time that Michael addition with Hacac and DMM can be used to reverse Ordelt saturation, an unwanted side-reaction in the synthesis of UPEs.

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This is an author produced version of a paper published in Polymer Chemistry. Uploaded in accordance with the publisher's self-archiving policy.

    Research areas

  • bio-based polymer, unsaturated polyester, itaconate polyester, Michael addition, Ordelt saturation


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