Synthesis of transparent poly(vinylidene fluoride) (PVdF)/zirconium oxide hybrids without crystallization of PVdF chains |
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Authors: | Takeshi Otsuka Yoshiki Chujo |
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Affiliation: | a Sumitomo Osaka Cement Co., LTD. 585, Toyotomi-cho, Funabashi-shi, Chiba 274-8601, Japan b Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku 615-8510, Japan |
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Abstract: | Transparent and homogeneous organic-inorganic hybrids with poly(vinylidene fluoride) (PVdF) could be prepared by addition of zirconium oxide nanocrystals (ZrO2-NCs) in a polar aprotic solvent and the subsequent solvent evaporation. The polar aprotic solvents such as DMF, DMAc and DMSO would form hydrogen bonds with Zr-OH groups of the ZrO2-NC and play a role as compatibilizers between the PVdF and ZrO2-NCs. The interpenetration between PVdF and ZrO2-NCs resulted in the nanometer dispersion of PVdF chains in a ZrO2-NC matrix. High dosage of the ZrO2-NCs as physical inhibitors between PVdF polymer chains sufficiently prevented the PVdF chain mobility in the internal of hybrids. The transparency of the PVdF/ZrO2-NC hybrids was dramatically improved by controlling the content of ZrO2-NCs. Novel multifunctional hybrids with high transparency, high refractive index and good mechanical property were obtained by hybridization of PVdF and ZrO2-NCs. |
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Keywords: | Poly(vinylidene fluoride) Zirconium oxide Nanocrystal |
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