Highly Cooperative Formation of Bis‐Urea Based Supramolecular Polymers

Vesna Simic (1) , Laurent Bouteiller (1) , Matthieu Jalabert (1)

1 LCP - Chimie des polymères

Eleven bis-ureas have been synthesized, and some of their properties are reported. Several of these compounds form supramolecular polymers in organic solvents. The self-association is shown by FTIR spectroscopy to display cooperativity at two levels. The first level of cooperativity is due to the synergistic association of the two urea functions of a single molecule. The second level of cooperativity is revealed by the fact that the formation of dimers is less favored than that of long oligomers.

Domaines: Chimie

Vesna Simic, Laurent Bouteiller, Matthieu Jalabert. Highly Cooperative Formation of Bis‐Urea Based Supramolecular Polymers. Journal of the American Chemical Society, 2003, 125 (43), pp.13148--13154. ⟨10.1021/ja037589x⟩. ⟨hal-01696750⟩