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    Influence of Cu(I)-Alkyne p-Complex Charge on the Step-by-Step Film Buildup through Sharpless Click Reaction

    Year: 2010

    Journal: Macromolecules, 2010, 43 (8), pp 3994–3997, 20100827

    Authors: Jierry L. †, Ameur N.B. ‡, Thomann J-S ‡, Frisch B.T. ‡, Gonthier E. †, Voegel J-C §, Senger B. §, Decher G. †, Felix O. †, Schaaf P. *†, Mesini P. †, Boulmedais F. †

    Last authors: Fouzia Boulmedais

    Organizations: † Centre National de la Recherche Scientifique, Unite Propre de Recherche 22, Institut Charles Sadron, 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France ‡ Laboratoire de Conception et Application de Molecules Bioactives, UMR 7199 CNRS/Universit de Strasbourg. Faculte de Pharmacie, 74 route du Rhin, 67401 Illkirch Cedex, France § Institut National de la Sant et de la Recherche Medicale, Unite 977, 11 rue Humann, 67085 Strasbourg Cedex, France Universite de Strasbourg, Faculte de Chirurgie Dentaire, 1 Place de l’Hopital, 67000 Strasbourg, France

    Country: France

    Cu(I)-catalyzed azide−alkyne [3 + 2] cycloaddition is used to construct step-by-step covalent polymer or polyelectrolyte multilayers. The catalysis involves the formation of a transient, yet rather stable, positively charged Cu(I)/alkyne complex. We demonstrate that the formation of this complex has a strong influence on the multilayer buildup process. It favors, for example, the film buildup between neutral polymer bearing alkyne groups and polyanion bearing azide groups. In contrary, it disfavors the buildup of the same neutral polymer with polycations bearing azide groups. The constructions of other multilayer systems are investigated and discussed in the light of the electrostatic interactions between these positively charged Cu(I)/alkyne complexes and the polyelectrolytes.