Janus nanorods (JNR) are asymmetrical polymeric nanoparticles consisting of two faces with different chemical natures. Their anisotropic shape, nanometric dimensions and different faces make such particles exciting for many potential applications, including the storage of information by nanolithography, which corresponds to the overall objective of the collaborative research project JASUR this PhD is part of. However, both the elaboration and properties of JNR have little been explored because of their extremely difficult preparation. Indeed, prior to our work, only two methods existed in the literature to prepare Janus nanocylinders.
We have very recently proposed an original strategy1 to prepare JNR by supramolecular selfassembly in solution of two different polymers bearing complementary hydrogen bonding units. The hydrogen bonding units have been designed not only to drive the self-assembly into onedimensional structures (nanorods), but also to force each polymer on either-side of the rods (Janus character) independently of the chemical structure of the polymer arms
