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Appts. for continuous electrochemical oxidn. of hetero-aromatic cpds. - esp. poly:pyrrole film prodn. with bubble barrier between cathode and rotary anode
Appts. for continuous electrochemical oxidn. of hetero-aromatic cpds. - esp. poly:pyrrole film prodn. with bubble barrier between cathode and rotary anode
Appts. for continuous electrochemical oxidn. of heteroaromatic cpds. (I), esp. pyrrole (IA), consists of an electrolysis vessel (1) contg. the aq. electrolyte system (2), a vertical immersed cathode plate (3), parallel to the side wall, a cylindrical anode roller (4) with its axis parallel to the cathode, which is about half immersed in the aq. electrolyte, and a cylindrical roller (8) for winding up the polyheteroaromatic film (6) formed on the anode. The novel features are that (a) the anode or its surface consists of corrosion-resistant stainless steel; and (b) an inert separator is placed between the cathode and anode in the electrolyte surface zone. USE/ADVANTAGE - The appts. gives high quality electroconductive (I) polymer, esp. polypyrrole films with a thickness of 2-100 microns and the results are reproducible. The films are smooth and glossy, with a surface roughness less than 25 microns, and have the required mechanical stability and electrical properties.
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