Design of tailored multi-charged phosphorus surface-block dendrimers

Polycationic or neutral dendrons of generation 1 to 3 bearing protonated (or not) amino end groups and a vinyl group at the focal point as well as polyanionic or neutral dendrons of generation 1 to 3 decorated with carboxylate or carboxylic groups on their surface and exhibiting a vinyl group at the core were prepared. Addition of ethylenediamine to the vinyl core of dendrons having amino end groups allowed the synthesis of uniquely tailored water-soluble phosphorus bis-dendrons via core to core assembling of dendrons having a vinyl core. In preliminary experiments layer-by-layer deposition of bis-dendrons on silica surface was demonstrated.