Author/Authors :
Skلkalovل، نويسنده , , V. and Fedorko، نويسنده , , P. and Végh، نويسنده , , D. and Chyla، نويسنده , , A. and Ryley، نويسنده , , S. and Walton، نويسنده , , D.، نويسنده ,
Abstract :
Pressure induced variation of the electrical conductivity of BF4− doped polypyrrole was observed at pressures below atmospheric pressure. Anomaly in the temperature dependence of the electrical conductivity corresponding to a glass transition were observed in cyclic measurements at temperatures near −30 °C. The effect was interpreted as a pressure induced order-disorder conformational transition.
Keywords :
Order-disorder phase transition , Glass transition , mechanical devices , Polypyrrole , Conductivity
