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

By F. Altuna, V. Pettarin, Roberto J. J. Williams. 2013

346 citations recorded by the source corpus.

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.

Subfields: Organic Chemistry, Polymers and Plastics, Process Chemistry and Technology

View Paper: https://www.semanticscholar.org/paper/86510a708b582a3ccdbbf92fb61914f96a7edad8

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In Organic Chemistry

1. M. Q. Zhang
2. M. Rong
3. Z. Zhang

In Polymers and Plastics

1. M. Q. Zhang
2. M. Rong
3. Z. Zhang
4. K. Friedrich

In Process Chemistry and Technology

1. M. Q. Zhang
2. Z. Zhang
3. M. Rong

Citations in the corpus

• Polymer engineering based on reversible covalent chemistry: A promising innovative pathway towards new materials and new functionalities (2018, methodology): “3 160 ◦C, 2 h Transesterification Almost 100% recovery of tentile strength [82]”