AbstractOxides are frequently used to improve the mechanical properties of plastics. Here we report how oxides of zinc, lead, cadmium, and indium, when embedded in a polymer matrix, can be electrochemically reduced, resulting in a polymer‐metal “composite” of high electrical conductivity. This method of preparation provides a uniform dispersion of small, clean metal particles, not obtainable by blending metal powder and polymer. The “composites” are somewhat porous, and other metals can be deposited on the “composites” from either electroplating or electroless plat
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