Fluoroalkyl end-capped vinyltrimethoxysilane oligomer [R_F-(CH₂–CHSi(OMe)₃)_n-R_F; n = 2, 3; R_F = fluoroalkyl group: R_F-(VM)_n-R_F] was found to undergo the sol–gel reaction in the presence of micro-sized silica particles under alkaline conditions to afford the corresponding fluorinated oligomer/micro-sized silica composites [R_F-(VM-SiO_3/2)_n-R_F/μ-SiO₂]. The obtained composites were applied to the surface modification of glass to reveal a superoleophilic/superhydrophobic characteristic on the modified surface. In contrast, fluoroalkyl end-capped vinyltrimethoxysilane oligomer/silica nanocomposites [R_F-(VM-SiO_3/2)_n-R_F/n-SiO₂], which were prepared in the presence of nanometer-sized silica particles under similar sol–gel reactions, provided an oleophobic/superhydrophobic property on the surface. R_F-(VM-SiO_3/2)_n-R_F/μ-SiO₂ composites were applied to the solid-phase extraction sorbent to isolate the transparent colorless oil from water-in-oil (W/O) emulsion. These composite powders were also applicable to the effective removal of traditional organic dyes, such as rhodamine B, acid red 289, and fluorescein from aqueous methanol solution. Of particular interest, it was demonstrated that R_F-(VM-SiO_3/2)_n-R_F/μ-SiO₂ composites, of whose micro-sized silica gel is surface-functionalized with amino units, can exhibit a similar superoleophilic/superhydrophobic characteristic on the composite surface, giving the selective removal of fluorinated phenol-type aromatic compounds from aqueous methanol solutions, although the removal ability for the corresponding non-fluorinated ones was not observed at all under similar conditions.

氟烷基封端的乙烯基三甲氧基硅烷低聚物[R _F-（CH ₂ -CHSi（OMe）₃）_n -R _F；n  = 2、3；R _F  =氟代烷基：R _F-（VM）_n -R _F ]在碱性条件下在存在微米级二氧化硅颗粒的条件下经历溶胶-凝胶反应，从而提供相应的氟化低聚物/微米级二氧化硅复合材料[R _˚F - （VM-的SiO _3/2）_ñ -R _˚F /μ-的SiO ₂]。将获得的复合材料应用于玻璃的表面改性，以在改性表面上显示出超亲油/超疏水特性。相比之下，氟烷基末端封端的乙烯基三甲氧基硅烷低聚物/二氧化硅纳米复合物[R _F-（VM-SiO _3/2）_n -R _F / n -SiO ₂ ]，是在相似尺寸溶胶下，在纳米级二氧化硅颗粒的存在下制备的。 -凝胶反应，在表面提供疏油/超疏水性能。ř _˚F - （VM-的SiO _3/2）_ñ -R _˚F /μ-的SiO ₂将复合材料应用于固相萃取吸附剂，从油包水（W / O）乳液中分离出透明无色油。这些复合粉末还适用于从甲醇水溶液中有效去除传统的有机染料，如若丹明B，酸性红289和荧光素。特别令人感兴趣的，证实的是，R _˚F - （VM-的SiO _3/2）_ñ -R _˚F /μ-的SiO ₂ 具有氨基单元表面功能化的微米级硅胶的复合材料可以在复合材料表面上表现出类似的超亲油/超疏水特性，从而可以选择性地从甲醇水溶液中去除氟化酚类芳族化合物，尽管其去除能力在相似的条件下，根本没有观察到相应的非氟化化合物。