Title: semi-dendritic constitutional repeating unit
Long Title: IUPAC Gold Book - semi-dendritic constitutional repeating unit
DOI: 10.1351/goldbook.09629
Status: current

Definition
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 (https://doi.org/10.1515/pac-2016-1217)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/09629/html
- json: https://goldbook.iupac.org/terms/view/09629/json
- xml: https://goldbook.iupac.org/terms/view/09629/xml

Citation: Citation: 'semi-dendritic constitutional repeating unit' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.09629
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Accessed: 2026-05-12T16:22:47+00:00