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Issue 18, 2013
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Self-healing systems based on disulfidethiol exchange reactions

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New thermoset systems based on disulfide bonds were synthesized with self-healing capabilities. The self-healing mechanism is not related to disulfidedisulfide exchange reactions, but to thioldisulfide exchange reactions that are pH-dependent. Stress relaxation experiments showed large relaxation for systems having PTM2 as a curing agent, which indicates that the system can rearrange its molecular structure as a mechanism to release stress. However, relaxation rates decreased for samples tested longer after production. This indicates the disappearance of thiol-groups probably caused by thiolthiol oxidation.

Graphical abstract: Self-healing systems based on disulfide–thiol exchange reactions

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The article was received on 18 Jan 2013, accepted on 12 Mar 2013 and first published on 13 Mar 2013

Article type: Paper
DOI: 10.1039/C3PY00087G
Polym. Chem., 2013,4, 4955-4965

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    Self-healing systems based on disulfidethiol exchange reactions

    M. Pepels, I. Filot, B. Klumperman and H. Goossens, Polym. Chem., 2013, 4, 4955
    DOI: 10.1039/C3PY00087G

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