Influence of the presence of disulphide bonds in aromatic or aliphatic dicarboxylic acid hardeners used to produce reprocessable epoxidized thermosets - Université Côte d'Azur Access content directly
Journal Articles Polymers Year : 2021

Influence of the presence of disulphide bonds in aromatic or aliphatic dicarboxylic acid hardeners used to produce reprocessable epoxidized thermosets

Chiara Di Mauro
  • Function : Author
Alice Mija
  • Function : Author
  • PersonId : 1004857

Abstract

The design of polymers from renewable resources with recycling potential comes from economic and environmental problems. This work focused on the impact of disulfide bonds in the dicarboxylic acids reactions with three epoxidized vegetable oils (EVOs)​. For the first time, the comparison between arom. vs. aliph. dicarboxylic acids, contg. or not S-​S bonds with EVOs was discussed and evaluated by dynamic scanning calorimetry. The obtained thermosets showed reprocessability, by the dual dynamic exchange mechanism. The virgin and reprocessed materials were characterized and the thermomech. properties were compared. The thermosets derived from EVOs with high epoxy content combined with arom. diacids contg. disulfide bridges showed high glass transition values (~ 111°C)​, high crosslink densities and good solvent stability.

Dates and versions

hal-03280123 , version 1 (07-07-2021)

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Chiara Di Mauro, Alice Mija. Influence of the presence of disulphide bonds in aromatic or aliphatic dicarboxylic acid hardeners used to produce reprocessable epoxidized thermosets. Polymers, 2021, 13 (4), pp.534. ⟨10.3390/polym13040534⟩. ⟨hal-03280123⟩
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