An improved method for the polymerization of ethynylferrocene. Conducting properties of doped polyethynylferrocene |
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| Authors: | A Camus V Faruffini A Furlani N Marsich G Ortaggi R Paolesse M V Russo |
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| Institution: | 1. Dipartimento di Scienze Chimiche, Universita di Trieste, P.le Europa 1, 34100 Trieste, Italy;2. Dipartimento di Chimica, c/o Dipartimento di Chimica, Università ‘La Sapienza’ P.le A. Moro 5, 00185 Rome, Italy;3. Centro di Studio sui Meccanismi di Reazione, c/o Dipartimento di Chimica, Università ‘La Sapienza’ P.le A. Moro 5, 00185 Rome, Italy |
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| Abstract: | The catalytic activity of the Rh(cod)Cl]2 complex (cod ? cis, cis-cyclo-octa-1,5-diene) with respect to the polymerization of ethynylferrocene (EFc) was examined. A good yield (about 80%) of polyethynylferrocene (PEFc) was obtained in benzene by addition of sodium hydroxide as co-catalyst. PEFc was insoluble in most organic solvents. The conductivity (s?) of the undoped polymer is about 10?11 ohm?1 cm?1; upon doping PEFc with iodine in tetrahydrofuran the conductivity can be increased to 10-100 ohm?1 cm?1. The influence of other doping agents was also examined. |
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| Keywords: | Polymerization ethynylferrocene conductivity |
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