Polyamine dendron

Scheme 15.21. Synthesis of polyamine dendrons on solid support.

Hydroxyl-terminated polyamine dendrons of the first and second generations were obtained on macroporous polystyrene by Qu and coworkers. The authors used diethanolamine monomer for the divergent synthesis of the dendrons. This was immobilized by nucleophilic substitution, while the terminal hydroxy groups were activated by the chlorodehydroxylation reaction (Scheme 15.23). The elemental analysis, used for quantification of the dendrimer loading, revealed 80-90% yield for each generation assembly. 

Su and coworkers used silica gel with immobilized polymelamine, poly(amidoamine), or poly(propylenimine) dendrons as the microcolumn packing for the flow injection preconcentration and separation of traces of Pt(IV) ions for flame atomic absorption spectroscopy determination.Polyamine dendron-functionalized polystyrene was... 

PBE dendrimers with a cyclic polyamine core at the focal point have been synthesized to form transition-metal complexes [27]. Tb + complexes exhibited luminescence by the excitation of the dendrons. 

Fig. 2 Structurally controlled polymers (a) dendrimer, (b) dendron, (c) random hyperbranched, and (d) dendrigrafts. The metabolism of the polyamine is still unclear. Reproduced with permission from [37]. Copyright 2001 Elsevier...

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