| Abstract
| - Step strain experiments and dynamic light scattering measurements are perfomed to characterize thedynamic behavior of an oil-in-water droplet microemulsion into which is incorporated a telechelic polymer.At sufficient droplet and polymer concentrations, above the percolation threshold, the system is viscoelasticand its dynamic structure factor consists of two steps for the relaxation of concentration fluctuations: thefast one is dominated by the diffusion but the slower one is almost independent of the wave vector. Theterminal time of the stress relaxation τR and the slow time of the dynamic structure factor τS are bothpresumably controlled by the residence time of a sticker in a droplet: consistently, τR and τS are of thesame order, they both vanish at the percolation threshold according to power laws but with differentexponents. We discuss these features in terms of deviations at the transition, from the usual mean fielddescription of the dynamics of transient networks.
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