This chapter describes the state of the art of the synthesis, characterization, functionalization, and possible applications of all-phenylene dendrimers. Due to their high number of benzene rings, this type of dendrimer distinguishes itself by high stiffness, shape persistence, and nanometer dimensions. This allows their use especially as chemically and thermally inert nano-supports for, e.g., chromophores, catalysts, but also as hosts for guest molecules due to large stable cavities. In addition, the surface and bulk self-organization properties of these polyphenylene dendrimers are presented.
