Surface-Confined Monomers on Electrode Surfaces. 7. Synthesis of Pyrrole-Terminated Poly(propylene imine) Dendrimers

摘要

Poly(propylene imine) dendrimers containing a diaminobutane core with pyrrole groups at the dendrimer periphery have been synthesized for the first time. The fully functionalized (as determined by mass spectrometry and NMR), pyrrole-terminated dendrimers (DAB-Py_x(X = 4,8,16)) were synthesized from 2,5-dimethoxytetrahydrofuran and commercially available poly(propylene imine) dendrimers containing a diaminobutane core (DAB-Am_x). Adsorption of the pyrrole-terminated dendrimers on Au surfaces is evidenced by the reflection-absorption infrared (RAIR) spectra of Au surfaces exposed to micromolar solutions of the dendrimers.