Browsing by Subject "Conducting composites"

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Conducting polymer composites of polypyrrole and polyindene
(Elsevier, 1996) Bozkurt, A.; Akbulut, U.; Toppare, L.
Polypyrrole-polyindene composites were prepared via electrochemical methods. Two different approaches were utilized. In the first, the electro-initiated polymerization of indene on a platinum electrode was achieved at 2.0 V versus Ag/Ag+ in acetonitrile. Then the polyindene-coated electrode was used for the electrochemical polymerization of pyrrole at 1.0 V versus Ag/Ag+. In the second case, electrochemical coating of platinum electrode with polypyrrole at 1.0 V versus Ag/Ag+ was carried out and indene was polymerized on the conducting polymer at 2.0 V versus Ag/Ag+ in acetonitrile medium. The characterizations of these composites were done by FT-IR, scanning electron microscopy (SEM) and thermal gravimetric analysis (TGA). Electrical conductivities were evaluated by two-probe and four-probe methods.
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Synthesis of a novel poly(arylene ether ketone) and its conducting composites with polypyrrole
(Elsevier, 1997) Selampinar, F.; Akbulut, U.; Yildiz, E.; Güngör, A.; Toppare, L.
The synthesis of a 1,3-bis(4-fluorobenzoyl)-5-tert-butyl benzene and hexafluoro bisphenol A based poly(arylene ether ketone) (PEK) was described. The electrically conductive composites of polypyrrole (PPy) and PEK were formed by electropolymerization of pyrrole on a PEK coated platinum electrode in a medium containing water andp-toluenesulfonic acid as the solvent and the electrolyte, respectively. The electrical conductivity of the composites was found to be between 1 and 4 S/cm. The polypyrrole/poly (ether ketone) composites were characterized by scanning electron microscopy, FT-IR and thermal analyses (TGA, DSC). © 1997 Elsevier Science S.A.