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Bicopper complex jellies and thermoreversible gels

Objectif



In the past two years, it has been studied "jellies" obtained from the solutions in organic solvents of a binuclear copper complex. The molecules of this complex tend to pile up and form threads that eventually behave as polymeric chains. There is, however, a main difference in that the columnar aggregates of the complex can break and reform at will unlike covalent polymers. These threads are thus "living" polymers. It has been recently observed that above a well- defined temperature the plateau modulus drops very rapidity. These results have been interpreted by considering that, in addition to columnar aggregation, lateral aggregation occurs between threads, thus leading to the formation of a physical gel with a fringed- micellar structure. Also, it has been observed that the solvent plays a role at the level of the mechanical properties. The research project is twofold:
1.- To study the effect of solvent type and of the lateral group of the complex on the propensity of forming either genuine jellies or thermoreversible gels.
2.- To investigate the effect of a dispersion of these complex molecules into thermoreversible gels of covalent polymers.

Champ scientifique (EuroSciVoc)

Programme(s)

Thème(s)

Appel à propositions

Données non disponibles

Régime de financement

RGI - Research grants (individual fellowships)

Coordinateur

Université de Strasbourg I (Université Louis Pasteur)
Contribution de l’UE
Aucune donnée
Adresse
4 rue Blaise Pascal
67070 Strasbourg
France
Coût total
Aucune donnée

Participants (1)