Browsing by Subject "Nonmetallic matrix composites"

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    Conducting polymer composites: polypyrrole and poly (vinyl chloride-vinyl acetate) copolymer
    (John Wiley & Sons, Inc., 1997) Balci, N.; Bayramli, E.; Toppare, L.
    Composites of a polypyrrole (PPy) and poly (vinyl chloride-vinyl acetate) copolymer (PVC-PVA) were prepared both chemically and electrochemically. An insulating polymer was retained in the blend and the thermal stability of the polymer was enhanced by polymerizing pyrrole into the host matrix in both cases. The composites prepared electrochemically gave the best results in terms of conductivity and air stability. © 1997 John Wiley * Sons, Inc.
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    Thermal degradation of polythiophene-natural rubber and polythiophene-synthetic rubber conducting polymer composites
    (1997) Hacaloǧlu J.; Yiǧit, S.; Akbulut, U.; Toppare L.
    Thermal degradation of conducting polymer composites of polythiophene and rubbers was studied by direct and indirect pyrolysis mass spectrometry techniques. The samples were prepared by electrooxidation of polythiophene using natural rubber or synthetic rubber as the insulating matrix. Presence of decomposition products which were not observed during pyrolysis of pure polythiophene and rubbers, and disappearance of rubber-based pyrolysis mass peaks, together with changes in thermal stability and behaviour, may directly be related to a chemical interaction between the components of the composites. The pyrolysis data were used to propose possible polymerization and degradation mechanisms. © 1997 Elsevier Science Ltd.