Polymers composed of macromolecules containing cyclic dicarboximide groupings in the backbone: where $\mathrm{R}{\phantom{A}}^1$, $\mathrm{R}{\phantom{A}}^2$, $\mathrm{R}{\phantom{A}}^3$ and $\mathrm{R}{\phantom{A}}^4$ are groups with connectivity one, two, three, and four, respectively (structure-based polymer class name).