Editorial: Nanocomposites with interfaces controlled by grafted or adsorbed polymers

adsorbing polymer molecules can modify both the interfacial physics and the filler structure, giving access 14 to improved macroscopic (mechanical, electrical, or optical) material properties.It is the aim of the present topical collection to focus on some aspects of recent research in this 16 highly active and evolving area. We review and summarize state-of-the-art investigations of polymer 17 nanocomposite materials which promote at a better understanding and control of the complex behavior of 18 nanocomposites. Two articles with original experimental approaches have been contributed, one presenting 19 an innovative application of microgel-nanoparticle composites in solvent, the other an in-depth study of the 20 structure and dynamics of a bulk polymer nanocomposite. In parallel, we have reviewed the general field 21 of particle and polymer structure and dynamics using scattering techniques, in particular neutron scattering, 22 and highlighted the role of interfacial polymer layers in the specific case of polymer-grafted nanoparticles 23 in a second review.Nanocomposites can have many faces and may serve for fundamental studies as well as applications.