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Article Dans Une Revue Reactive and Functional Polymers Année : 2023

Synthesis and characterization of ammonium containing cyclocarbonates and polyurethanes there from

Résumé

Using a three steps procedure a water soluble cationic bis-cyclocarbonate was prepared. Aminolysis was attempted in water but was not successful because of rapid hydrolysis of the starting cyclocarbonate in these basic conditions. Non-isocyanate polyurethanes (linear and crosslinked) were then prepared in acetonitrile with high yields. The resulting materials exhibited good thermal properties (Tdeg > 230 °C) and Tg > 60 °C. The presence of the cationic moiety led to hydrophilic materials with swelling rate of 45% and a plastification effect was observed with Tg decreasing down to −28 °C. Further, considering ammonium characteristics, antibacterial properties were assessed. Surface adhesion test showed a 99,9% inhibition towards gram-positive and gram-negative bacteria for the polyurethane thermoset. Acute toxicity was evaluated on the bis-cyclocarbonate oligomer confirming its innocuity in the studied concentration range.
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Dates et versions

hal-04321187 , version 1 (04-12-2023)

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Luis Miguel Nuñez Tapia, Pascal Thebault, Laurent Bischoff, Alain Ledoux, Florian Defontaine, et al.. Synthesis and characterization of ammonium containing cyclocarbonates and polyurethanes there from. Reactive and Functional Polymers, 2023, 194, pp.105777. ⟨10.1016/j.reactfunctpolym.2023.105777⟩. ⟨hal-04321187⟩
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