Electroactive conducting blends of poly( o-toluidine) and poly(vinylidene fluoride) and characterisation

• Published in: Synthetic metals Vol. 132; no. 3; pp. 219 - 226
• Main Authors: Sivakumar, C., Wen, T.C., Gopalan, A., Teng, H.
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 31.01.2003; Amsterdam Elsevier Science; New York, NY
• Subjects: Applied sciences; Conducting blends; Cyclic voltammetry; Differential scanning colorimetry; Electrical conductivity; Electrical, magnetic and optical properties; Exact sciences and technology; FT-IR spectroscopy; Organic polymers; Physicochemistry of polymers; Properties and characterization; Thermal analysis; Cyclic voltammetry; Electrical conductivity; FT-IR spectroscopy; Thermal analysis; Conducting blends; Differential scanning colorimetry; Aniline derivative polymer; Polymer blends; Electrical properties; Property composition relationship; Experimental study; Sulfonic acid; Thermal stability; Conducting polymers; Electrochemical properties; Vinylidene fluoride polymer; Doped polymer
• ISSN: 0379-6779; 1879-3290
• DOI: 10.1016/S0379-6779(02)00449-6

Conducting blends of poly( o-toluidine) (POT) with poly(vinylidene fluoride) (PVDF) were prepared by solution casting method. POT doped with H 2SO 4 or p-toluene sulphonic acid (PTSA) was used for making the blends. Flexible, free standing conducting polyblends were obtained and characterised by electrical conductivity measurements, UV-Vis, FT-IR spectroscopy, thermogravimetric analysis (TGA), differential scanning colorimetry (DSC) and cyclic voltammetry. The conductivity of the blend was found to increase with POT content in the blend. A low percolation threshold (2%) was noted for the blends. Thermal stability of the blends was found to be better. The changes in the crystalline phase of PVDF were observed through FT-IR spectroscopy and DSC measurements. The blend films were electrochemically stable and showed electrochemical properties similar to POT.