期刊
JOURNAL OF APPLIED POLYMER SCIENCE
卷 93, 期 2, 页码 736-741出版社
WILEY
DOI: 10.1002/app.20536
关键词
polypyrroles; thermal properties; electrochemical synthesis; mechanical properties; conducting composites
Conductive and flexible polydimethylsiloxane (PDMS)/polypyrrole (PPy) composites were synthesized electrochemically. Electrochemical syntheses were performed at +1.10 V by using p-toluene sulfonic acid (PTSA) as supporting electrolyte and water as solvent. Composites were characterized by cyclic voltammetry, thermogravimetric analysis, differential scanning calorimetry, scanning electron microscopy, and Fourier transform infrared spectroscopy. Conductivity measurements and mechanical tests were also performed. The observed conductivities were in the range of 3.5-7.6 S/cm, indicating that the conductivities of PDMS/PPy composites and that of pure PPy were in the same order of magnitude. Tensile tests revealed that higher percent elongation was obtained by the addition of PDMS. Highly flexible and foldable PDMS/PPy composites were successfully synthesized, which have high conductivities and unproved mechanical properties. (C) 2004 Wiley Periodicals, Inc.
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