Polyamide model compound containing the urea group as selective colorimetric sensing probe toward aromatic diamines.

Noelia San-Jose (1) , Ana Gomez-Valdemoro (1) , Veronica Calderon (2) , Jose L de La Peña (1, 2) , Felipe Serna (1) , Felix C Garcia (1) , Jose Miguel Garcia (1)

1 Quimica
2 Quimica

A colorimetric diacid monomer for aromatic diamine sensing containing the urea binding site have been synthesized and characterized. A colour development from colourless to blue, brown or yellow was observed upon addition of metha, para or ortho-phenylenediamine, respectively, to polar aprotic organic solvent solutions of the monomers. The solutions remained colourless upon addition of other amines or diamines. The model polyamide compound derived from the diacid monomer maintain the colorimetric sensing selectivity toward the aromatic diamines, so the polyamides derived from the diacid monomer described herein are supposed to retain the ability to interact selectively with the aromatic diamines, so cheap future sensing devices could be built by means of easy-to-use naked-eye polyamide film chemosensor or by incorporating a polyamide coating in the end of an optic fibre connected to a portable diode array visible detector.

Mots clés: Physical Sciences

Noelia San-Jose, Ana Gomez-Valdemoro, Veronica Calderon, Jose L de La Peña, Felipe Serna, et al.. Polyamide model compound containing the urea group as selective colorimetric sensing probe toward aromatic diamines.. Supramolecular Chemistry, 2009, 21 (05), pp.337-343. ⟨10.1080/10610270701882193⟩. ⟨hal-00513528⟩