Voltammetric behavior of poly(amidoamine) dendrimers containing nitroxyl radical end groups |
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| Affiliation: | 1. Center for Education and Research on Macromolecules (CERM), University of Liège, B6a Sart–Tilman, B 4000 Liège, Belgium;2. LCAE-URAC 18, Faculty of Science, University of Mohammed Premier, Po Box 717, 60000 Oujda, Morocco;3. Materials Science and Nano-engineering, Mohammed VI Polytechnic University (UM6P), Lot 660 Hay Moulay Rachid, Ben Guerir, Morocco |
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| Abstract: | A series of fully functionalized poly(amidoamine) dendrimers with 4-carboxy-2,2,6,6-tetramethylpiperidin-1-yloxyl end groups were prepared. Cyclic voltammetric studies indicated that the pendant nitroxyl radical end groups are non-interacting electrochemically equivalent redox centers, which are oxidizable at the same potential. The results of controlled-potential electrolysis of the dendrimers showed that all the nitroxyl radical groups at the periphery of the dendrimers are accessible to the electrode surface for electron transfer. |
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