Tetrafluoro-λ⁶-sulfanyl (–SF₄–) was synthesized via oxidative fluorination and used as a bridging group to bond perfluoroalkyl to phenylene. As a result, perfluoroalkylphenyltrichlorosilane was prepared by hydrosilylation using perfluoroalkylstyrene as a raw material under platinum catalytic conditions. And the corresponding monolayers produced a coating on silicon surfaces by spontaneous self-assembly from solution. Due to the introduction of –SF₄–, it can increase the shielding effect of the fluoroalkyl group and reduce the surface energy of the material on the basis of extending the length of the perfluoroalkyl chain. At the same time, the sulfur–carbon bond formed by the bridge group is more likely to decrease under ultraviolet light. Once the bridge bond is broken, the perfluoroalkyl-terminated carbon chain perfluoroalkyl group is decomposed and detached. Therefore, the fluorine-containing material has good ultraviolet light degradation property, and the obtained fluorine-containing material is environmentally friendly. The self-assembled film containing a perfluoroalkylsilane can effectively reduce the friction properties and adhesion of the substrate, and the substrate modified with the self-assembled film containing a perfluoroalkylsilane has good stability.

中文翻译：

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可紫外线降解的全氟烷基与四氟-λ6-硫烷基的桥连键

四氟λ ⁶硫烷基（-SF ₄ - ）通过氧化氟化来合成，并用作桥连基团键合到全氟烷基，以亚苯基。结果，在铂催化条件下，以全氟烷基苯乙烯为原料，通过氢化硅烷化来制备全氟烷基苯基三氯硅烷。相应的单层通过溶液自发自组装在硅表面产生涂层。由于引入了–SF ₄–，在延长全氟烷基链长度的基础上，它可以提高氟烷基的屏蔽效果并降低材料的表面能。同时，由桥基形成的硫碳键在紫外线下更可能被还原。一旦桥键断裂，则全氟烷​​基末端的碳链全氟烷基基团分解并脱离。因此，含氟材料具有良好的紫外线降解性能，并且所获得的含氟材料是环境友好的。包含全氟烷基硅烷的自组装膜可以有效地降低基材的摩擦性能和粘附性，并且用包含全氟烷基硅烷的自组装膜改性的基材具有良好的稳定性。