A spirocyclic parabanic acid masked N‐heterocyclic carbene as thermally latent pre‐catalyst for polyamide 6 synthesis and epoxide curing

Altmann, Hagen J.; Frey, Wolfgang; Buchmeiser, Michael R.

A spirocyclic parabanic acid masked N‐heterocyclic carbene as thermally latent pre‐catalyst for polyamide 6 synthesis and epoxide curing

dc.contributor.author	Altmann, Hagen J.
dc.contributor.author	Frey, Wolfgang
dc.contributor.author	Buchmeiser, Michael R.
dc.date.accessioned	2024-04-25T13:51:10Z
dc.date.available	2024-04-25T13:51:10Z
dc.date.issued	2020	de
dc.date.updated	2023-11-14T05:53:58Z
dc.description.abstract	1,3‐Dicyclcohexyl‐6,9‐dimethyl‐1,3,6,9‐tetraazaspiro[4.4]non‐7‐ene‐2,4‐dione, a spirocyclic parabanic acid derivative of N,N‐dimethylimidazole, is used as thermally latent, protected N‐heterocyclic carbene (NHC) in polymerizing anhydride‐cured epoxide resins, and azepan‐2‐one, respectively. The protected carbene is synthesized from 1,3‐dimethylimidazolium‐2‐carboxylate in the presence of two equivalents of cyclohexyl isocyanate. In the synthesis of epoxide resin thermosets, this class of latent NHC allows the production of fast and fully cured materials with high crosslinking content. Fast and complete conversion is found in the anionic ring opening polymerization (AROP) of azepan‐2‐one (ε‐caprolactam, CLA) with and without additional activators.	en
dc.description.sponsorship	Ministry of Science, Research and Arts of the Federal State of Baden‐Württemberg	de
dc.description.sponsorship	Projekt DEAL	de
dc.identifier.issn	1521-3927
dc.identifier.issn	1022-1336
dc.identifier.other	1887243321
dc.identifier.uri	http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-ds-142996	de
dc.identifier.uri	http://elib.uni-stuttgart.de/handle/11682/14299
dc.identifier.uri	http://dx.doi.org/10.18419/opus-14280
dc.language.iso	en	de
dc.relation.uri	doi:10.1002/marc.202000338	de
dc.rights	info:eu-repo/semantics/openAccess	de
dc.rights.uri	https://creativecommons.org/licenses/by/4.0/	de
dc.subject.ddc	540	de
dc.title	A spirocyclic parabanic acid masked N‐heterocyclic carbene as thermally latent pre‐catalyst for polyamide 6 synthesis and epoxide curing	en
dc.type	article	de
ubs.fakultaet	Chemie	de
ubs.institut	Institut für Organische Chemie	de
ubs.institut	Institut für Polymerchemie	de
ubs.publikation.seiten	5	de
ubs.publikation.source	Macromolecular rapid communications 41 (2020), No. 2000338	de
ubs.publikation.typ	Zeitschriftenartikel	de

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