Novel Preparation Route of Conductive PPy-PAN Hybrid Thin Films Using Simultaneous Co-vaporized Vapor Phase Polymerization

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· 저자명 : 폴린, 임진형

초록

A new approach for the fabrication of organic-organic conducting composite thin films using simultaneous covaporization vapor phase polymerization (SC-VPP) of two monomers that have different polymerization mechanisms (i.e., oxidation-coupling polymerization and radical polymerization) has been reported for the first time. In this study, a PPy-PAN composite thin film consisting of polypyrrole (PPy) and polyacrylonitrile (PAN) were prepared by the SC-VPP process. The preparation of the two types of organic-organic conductive composite thin films was confirmed through FTIR and 1H NMR analysis. The PPy-PAN thin film had a smaller grain size and relatively smoother surface than the PPy thin film. PPy-PAN showed similar electrical conductivity to PPy due to its smooth surface morphology. The contact angle of PPy-PAN was below 30o, which means the surface property was changed to hydrophilic character. The proposed SC-VPP-based hybrid materials allow for control of the surface properties, such as hydrophilicity, of the resulting thin films.

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