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Chemical And Electrochemical Doping Of PPS In Sulfuric Acid

C. Arbizzani, M. Mastragostino, G. Dellepiane, P. Piaggio

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ABSTRACT; Chemical and electrochemical dopings of poly(para-Phenylene SulfideHPPS) in the SO3/H2O system were followed by UV-VIS-NIR spectros-copy. The time evolution of the polymer's absorption bands in concentrated sulfuric acid clearly showed doping-swelling and solubilisation of the material. It was also found that highly concentrated sulfuric acid is necessary for the electrochemical doping of PPS.