Self-healable polymer networks based on the cross-linking of epoxidised soybean oil by an aqueous citric acid solution

Epoxidised soybean oil (ESO) was cross-linked with an aqueous citric acid (CA) solution without the addition of any other catalyst or solvent. Completely bio-based polymer networks were generated. The initial system was an emulsion, but it became a homogeneous and transparent polymer network by reaction. The ability of the final materials to self-heal without adding extrinsic catalysts was assessed by stress relaxation and lap-shear tests. This was achieved by molecular rearrangements produced by thermally activated transesterification reactions of β-hydroxyester groups generated in the polymerization reaction.

• Publication year

  2013

• Venue

  Green Chemistry

• Publication date

  2013-11-20

• Fields of study

  Materials Science, Chemistry

• Identifiers
  DOI 10.1039/C3GC41384E
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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