期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 12, 期 1, 页码 137-139出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2009.11.007
关键词
PAMAM dendrimers; Ion transfer; Phase transfer
资金
- Mexican Council for Science and Technology (CONACyT) [SEP-CONACYT 83894, SEP-CONACYT 91086]
The transfer of PAMAM dendrimers bearing carboxylic acid peripheral groups between two immiscible liquids was studied by means of the three phase junction system, using a gold wire vertically crossing the interface and decamethyl ferrocene as the redox probe in the organic phase. While the voltammetric behavior indicates kinetic limitations of the overall ion-electron transfer process, thermodynamic data shows that the phase transfer process is entropically controlled. Four dendrimer generations were analyzed and it was found that the kinetics as well as the thermodynamics of the phase transfer reaction are size dependent. (C) 2009 Elsevier B.V. All rights reserved.
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