Electrochemical Characterization of Poly(1,8‐diaminonaphthalene): A Functionalized Polymer

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Abstract
Electrochemically prepared poly(1,8‐diaminonaphthalene) has been characterized in terms of its electrochemical, chemical, and electrical properties. The polymer is electroactive in aqueous solutions, has a reasonable conductivity of 2 to 3 S/cm in its doped form, and has free‐amine groups as examined by infrared spectra as well as its ability to form a complex with Ag+ in solution. The stripping current of reduced Ag+ complexed onto the polymer is diffusion controlled, indicating that a major fraction of the complexed Ag+ is inside the polymer matrix. When the Ag+‐complexed polymer is electrochemically reduced, it increases in conductivity by more than two orders of magnitude compared with that of the fully doped uncomplexed polymer by oxidation. This is a unique technique of doping a conducting polymer containing functional groups such as amines.

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