Development of Novel Fluorinated Nanomaterials by the Use of Fluorinated Organic/Inorganic Polymer Hybrids as Key Materials

本研究从开发新型含氟功能纳米材料的角度出发，对含氟烷基端基低聚物/无机聚合物杂化材料的合成进行了详细的研究。2004年，在碱性条件下，通过铁离子和亚铁离子的共沉淀法制备了含氟烷基端基的丙烯酸低聚物包覆磁性纳米粒子。此外，在温和的条件下，通过在氟烷基端封端齐聚物自组装分子聚集体的存在下还原相应的金属前体，制备了纳米尺寸可控的金颗粒。2005年，研究发现，由这些氟化分子聚集体保护的稳定的金纳米颗粒被应用于聚甲基丙烯酸甲酯薄膜表面以上的分散。此外，还将端氟烷基齐聚物包裹的磁性纳米粒子应用于磁性粒子在聚甲基丙烯酸甲酯薄膜表面的分散，不仅表现出氟赋予的表面活性，而且还表现出对永磁体的磁性行为。特别是，我们成功地开发了具有抗菌活性等生物学特性的含氟功能聚合物杂化材料。因此，这些含氟有机/无机聚合物杂化材料具有开发新型含氟功能纳米材料的巨大潜力。

In this study, synthesis of fluoroalkyl end-capped oligomers/inorganic polymer hybrids have been studied in detail from the viewpoints of the development of new fluorinated functional nanomaterials.In 2004,it was found that fluoroalkyl end-capped acrylic acid oligomer-encapsulated magnetic nanoparticles were prepared by the coprecipitation of aqueous ferric and ferrous ions in the presence of the corresponding oligomers under alkaline conditions. In addition, nanometer size-controlled gold particles were prepared under mild conditions by reducing the corresponding metal precursor in the presence of self-assembled molecular aggregates formed by fluoroalkyl end-capped oligomers.In 2005,it was found that the stable gold nanoparticles protected by these fluorinated molecular aggregates were applied to the dispersion above the poly(methyl methacrylate) film surface. Furthermore, fluoroalkyl end-capped oligomer-encapsulated magnetic nanoparticles were also applied to the dispersion of magnetic particles on the poly(methyl methacrylate) film surface to exhibit not only the surface active property imparted by fluorine but also magnetic behavior toward a permanent magnet. In particular, we have succeeded in the development of the fluorinated functional polymer hybrids possessing a biological property such as an antibacterial activity. Therefore, these fluorinated organic/inorganic polymer hybrids have high potential for new fluorinated functional nanomaterials.