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Free radical scavenging properties of polypyrrole and poly(3,4-ethylenedioxythiophene)
Chyong Fang Hsu,Lijuan Zhang,Hui Peng,Jadranka Travas-Sejdic,Paul A. Kilmartin 한국물리학회 2008 Current Applied Physics Vol.8 No.3,4
Polypyrrole (PPy) and poly(3,4-ethylenedioxythiophene) (PEDOT) powders were prepared using various molar ratios of ammoniumpersulfate (APS) to their respective monomers. The antioxidant properties of these polymers were investigated through their reactionwith the stable and intensely coloured DPPH radical. The DPPH scavenging activity was higher for PPy versus PEDOT, and decreasedfor both conducting polymers as the level of APS oxidant used in their formation was raised. The conductivity of the resulting polymers.