아연-프탈로시아닌에 의한 탄소나노튜브의 비공유 기능화와 이를 포함하는 폴리불화비닐리덴의 베타상 형성에 대한 연구

초록

We present the dispersion properties of alkylated zinc-phthalocyanine (R-ZnPc) for single-walled carbon nanotubes (SWCNTs), which finds useful for the β-phase formation of a polyvinylidene fluoride (PVDF) matrix. The R-ZnPc was prepared by direct tetramerization of alkylated phthalonitrile with zinc salts. Due to the presence of long peripheral alkyl-substituents, the prepared R-ZnPc exhibited controllable solubility in selected solvents. Taking advantage of the hydrophobic interactions of alkyl chains and flat structural features of Pc macrocycles, molecular wrapping of R-ZnPc around the SWCNTs was intended to produce noncovalent supramolecular complexes. The prepared Pc-CNT complexes were analyzed by various characterization methods, including UV-Vis, FTIR, Raman, TGA, SEM, and XPS measurements. Furthermore, the Pc-CNT/PVDF composite films were prepared using the Pc-CNT complex as effective nanofillers for the PVDF matrix. The dielectric constants of the Pc-CNT/PVDF composite films were significantly increased as a consequence of the promoted -phase formation in the PVDF matrix, as evidenced by FTIR and XRD measurements. Current results suggested that the R-ZnPc functionalized SWCNTs have affected the crystalline structure of the PVDF matrix, which can be a useful tool for producing nano-fillers for hybrid polymer composites.

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