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Poly‐1,4‐dimethoxybenzene has been synthesized by the anodic oxidation of 1,4‐dimethoxybenzene in aprotic electrolytes. The black polymer is a doped semiconductor as formed. This material is converted to polymeric (oligomeric) hydroquinone and quinone. The polymers are insoluble in all common solvents except for the polyhydroquinone in aqueous base. A coulombic titration of this quinone, using an electrode compounded with carbon and in an aprotic electrolyte, gave an equivalent weight corresponding to ∼0.5e − per quinone unit. Similar results were observed in the initial cycles in Li cells, however, the capacity of the electrode degraded on cycling.

The perchloroclosoborane acids, H2B12Cl12 and H2B10Cl10 , were prepared in high purity and investigated as alternative electrolytes to H3PO4 in moderate temperature acid fuel cells. Procedures were developed for the purification of the acids prepared from commercially available salts. The purified acids were characterized by infrared, electronic, NMR, and mass spectroscopy. Concentrated aqueous solutions of the acids were found to have low ionic conductivity and a moderate water vapor pressure. The mono anions, B12Cl12− and B10Cl10− , formed from reactions of concentrated aqueous solutions or the solid hydrates of the acids. The B12Cl122− and B10Cl102− anions were also found to adsorb on electrocatalytic Pt surfaces.

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