Polymeric electrodeposits with metallic particles

Liquid-scintillation counting is a less common method used to measure plutonium concentrations from the various alpha-particle emitters among the isotopes of plutonium. Although liquid scintillation counting avoids the interferences from iron and other metals seen with electrodeposition, this method generally has higher detection limits than obtained with alpha spectrometry. In addition, the composition of the scintillation solution must be carefully controlled to prevent polymerization, deposition, or precipitation of the plutonium (NCRP 1985). 

Polymerization of pyrrole has also been carried out chemically by mixing the monomer with a homogeneous oxidant (Fe ) in solution. Mermillod et al [61] found that poly(pyrrole) synthesized in water by action of Fe ( 104)3 produces particles in solution as well as films on the reactor walls. The material was electrochemically identical with electropolymerized product. Gregory et al [62] chemically deposited very uniform films of poly(pyrrole) on textile fibres and woven glass cloth. Gottesfeld et al [63] found that chemically deposited films were uniform and could serve as a conducting substrate for metallization structures for microelectronic circuitry. Hillman et al [64] studied the electrodeposition of poly(vinylfer-rocene) with the quartz crystal microbalance. 

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