Article Dans Une Revue Progress in Organic Coatings Année : 2025

Effect of the formation of hydantoin in aspartate-based polyurea networks

Résumé

The paper aims to give an understanding of the structure of crosslinked polyurea coatings based on aspartate esters and to link it with changes in mechanical properties observed over time. Model systems representative of the networks are synthesized and analyzed by NMR. It allows to put forward the formation of hydantoin by the reaction of the urea groups with the neighboring ester groups. It is seen that the presence of acid within the network accelerates this phenomenon. A feature of the work deals with the influence of hydantoin formation on mechanical properties. Depending on the presence of plasticizers, it appears that hydantoin formation leads to different mechanical properties changes.
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vendredi 30 janvier 2026
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vendredi 30 janvier 2026
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Dates et versions

hal-04921789 , version 1 (30-01-2025)

Identifiants

  • HAL Id : hal-04921789 , version 1

Citer

Adrien Topalian, Françoise Méchin, Jannick Duchet-Rumeau, Rolf Klucker, Jean-François Gérard. Effect of the formation of hydantoin in aspartate-based polyurea networks. Progress in Organic Coatings, In press. ⟨hal-04921789⟩
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