Dendrigraft polymers, sometimes referred to as arborescent polymers, are a relatively new addition to the dendritic family, combining features of dendrimers and hyperbranched polymers with linear polymers.
Dendrigraft polymers are grown in generations, much like dendrimers, but the repeating unit is an oligomer or a polymer chain, rather than a small monomer unit.
As dendrigraft polymers flexible polymers with very high molecular weights are obtained rapidly.
Dendronized polymers, sometimes termed ‘‘rod-shaped polymers’’, are structures having a linear backbone with dendritic sidechains.
Dendronized polymers are a sub-class of comb-polymers where the ‘‘comb’s teeth’’ are dendrons instead of linear polymer chains.
Fully stretched out dendronized polymers are rod-like cylindrical polymers (‘‘nanotubes’’) and are believed to have new and interesting properties, since they have dimensions reminiscent of several biological functional units, such as the mosaic virus (lengths up to 400 nm and diameters up to 6 nm).
Dendronized polymers have exceptionally high aspect ratio compared to the globular dendrimers, i.e. they are not only molecular objects; they are also form-anisotropic nanoscopic objects.