semi-dendritic constitutional repeating unit

https://doi.org/10.1351/goldbook.09629
Constitutional repeating unit of connectivity \(c \ge 4\) connected to more than two but less than \(c\) other constitutional repeating units.

Example of a hyperbranched macromolecule part with a semi-dendritic constitutional repeating unit of connectivity \(c = 4\) (circled), connected to three other constitutional repeating units and to one hydroxymethyl end-group. The preferred constitutional repeating unit is chosen such that the branch points are at its end in the dendron direction.

Source:
PAC, 2019, 91, 523. (Nomenclature and terminology for dendrimers with regular dendrons and for hyperbranched polymers (IUPAC Recommendations 2017)) on page 535 [Terms] [Paper]