Self-healing systems based on disulfide-thiol exchange reactions

Autor:	Iaw Ivo Filot, Mpf Mark Pepels, L Bert Klumperman, Jgp Han Goossens
Přispěvatelé:	Inorganic Materials & Catalysis, Chemical Engineering and Chemistry
Jazyk:	angličtina
Rok vydání:	2013
Předmět:	chemistry.chemical_classification Polymers and Plastics Chemistry Organic Chemistry Disulfide bond Thermosetting polymer Bioengineering Photochemistry Biochemistry Vitrimers Self-healing Stress relaxation Thiol Relaxation (physics) Molecule Organic chemistry
Zdroj:	Polymer Chemistry, 4(18), 4955-4965. Royal Society of Chemistry
ISSN:	1759-9962 1759-9954
Popis:	New thermoset systems based on disulfide bonds were synthesized with self-healing capabilities. The self-healing mechanism is not related to disulfide–disulfide exchange reactions, but to thiol–disulfide 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 thiol–thiol oxidation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::194c359e7d3229be001996a64f9afaf6 https://research.tue.nl/en/publications/9811a706-a3b5-482d-88c8-b97988c23893 Zobrazit plný text záznamu