Abstract
Polymer thin films are prepared by electrochemical polymerization of 6-(N-allyl-1,1,2,2-tetrahydroperfluorodecyl)amino-1,3,5-triazine-2,4-dithiol monosodium on an aluminum plate. The steric and chemical structures of films are characterized by optical ellipsometry, contact angle goniometry, Fourier transform infrared spectroscopy (FT-IR) and impedance spectroscopy. Polymer film thickness and potential applied to the films during electrochemical polymerization, a measure of packing density, increase proportionally to the square root of electrochemical polymerization time following a parabolic law. From FT-IR spectra of the polymer films formed on aluminum plates, only the C–F stretching vibration peak of CF3- groups at 1345 cm−1 is observed, indicating extremely oriented polymer thin film. C1s, N1s and S2p peaks in the XPS spectra indicate that the chemical structure of polymer thin film is poly(6-(N-allyl-1,1,2,2-tetrahydroperfluorodecyl)amino-1,3,5-triazine-2,4-disulfide) (PATP) and allyl, tetrahydroperfluorodecyl amino chain axes are perpendicular to the surface, but the triazine ring is aligned parallel to the surface. The contact angle of polymer thin films was 123°, on which a top layer thought to be composed of CF3- groups exists. Polymer films on aluminum plates were used to produce parallel plate capacitors having capacitances of 1.33 to 2.06 μF/cm2. The dielectric constants of polymer films were calculated to range from 142 to 175, the highest reported for organic dielectrics to date.
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Wang, F., Mori, K. & Oishi, Y. Electrochemical Polymerization of 6-(N-Allyl-1,1,2,2-tetrahydroperfluorodecyl)amino-1,3,5-triazine-2,4-dithiol Monosodium on Aluminum. Polym J 38, 484–489 (2006). https://doi.org/10.1295/polymj.38.484
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DOI: https://doi.org/10.1295/polymj.38.484