Synthesis and Properties of Polyfluoro(silyl)acetylene Nanoparticles by Reaction of Fluoro(silyl)acetylenes with Triethylamine
Synthesis and Properties of Polyfluoro(silyl)acetylene Nanoparticles by Reaction of Fluoro(silyl)acetylenes with Triethylamine
复制标题
氟(甲硅烷基)乙炔与三乙胺反应制备多氟(甲硅烷基)乙炔纳米粒子及其性能
DOI：
10.1007/s00396-012-2851-3
复制
发表时间：
2013
期刊：
影响因子：
--
通讯作者：
and H. Sawada
中科院分区：
文献类型：
--
作者：
Y. Goto;M. Shiosaki;T. Hanamoto;M. Yoshida;and H. Sawada
以1，1-二氟乙烯和氯化硅烷为原料合成了氟(硅)乙炔，再与三乙胺反应制得深棕色的聚氟(硅)乙炔粉末。相反，在类似的条件下，相应的非氟化乙炔根本不能与三乙胺反应生成聚(硅基)乙炔。所制得的聚氟乙炔是纳米尺寸可控的立方体微粒，在各种溶剂中具有良好的分散性和稳定性。这些多氟(硅基)乙炔纳米粒子具有与聚合物主链上的共轭单元相关的清晰的吸收和发射光谱。此外，将这些多氟(硅基)乙炔纳米粒子应用于聚甲基丙烯酸甲酯[PMMA]薄膜的表面修饰，使其表面的氟具有比反面更高的憎油性。图3通过响应的氟(硅基)乙炔与三乙胺的反应，以优异到中等的分离产率合成了新的聚氟(硅基)乙炔。相反，在类似的条件下，相应的非氟化硅基乙炔不能得到聚(硅基)乙炔。这些多氟(硅基)乙炔可在多种溶剂中形成纳米尺寸可控的立方体微粒(在100 nm以内)。
Fluoro(silyl)acetylenes, which were prepared by reaction of 1,1-difluoroethylene with silyl chlorides, reacted with triethylamine to give dark-brown colored polyfluoro(silyl)acetylene powders in excellent to moderate isolated yields. In contrast, the corresponding nonfluorinated acetylene was unable to react with triethylamine at all to afford poly(silyl)acetylene under similar conditions. Polyfluoro(silyl)acetylenes thus obtained were nanometer size-controlled cubic fine particles with a good dispersibility and stability in a variety of solvents. These polyfluoro(silyl)acetylene nanoparticles exhibited clear absorption and emission spectra related to the conjugated units in polymer main chain. Furthermore, these polyfluoro(silyl)acetylene nanoparticles were applied to the surface modification of poly(methyl methacrylate) [PMMA] film to exhibit a higher oleophobicity imparted by fluorine on their surface, compared to that on the reverse side.FigureNew polyfluoro(silyl)acetylenes were prepared by reaction of the creesponding fluoro(silyl)acetylenes with triethylamine in excellent to moderate isolated yields. In contrast, the corresponding nonfluorinated silylacetylene was unable to give poly(silyl)acetylene under similar conditions. These polyfluoro(silyl)acetylenes thus obtained can form the nanometer size-controlled cubic fine particles (within 100 nm) in a variety of solvents.