Polymeric Ultrathin Films as Bonded Lubricants, Coatings, and Membranes

这项研究是美国国家科学基金会/EPRI高级聚合物材料联合项目的一部分。研究了新型氟化超薄膜的摩擦学性能。薄膜由分子组成，这些分子被设计成可以自发地吸收到固体表面，自组装，并作为单层固定。这种聚合物结构结合了两亲性的自有机单体结构，产生了高度有序的聚合物Langmuir- Blodgett薄膜，并通过柔性连接结合了移动性和组装性。薄膜化学将使用柔性的、低表面能的硅氧烷骨架，其衍生化为自组装的、末端功能化的长烃烷基链，用于表面化学吸附，以及可移动的全氟侧链，以增强摩擦性能。

This study is part of a joint NSF/EPRI Program on Advanced Polymeric Materials. The tribological properties of novel fluorinated ultra-thin films will be investigated. The films are composed of molecules which are designed to spontaneously absorb to solid surfaces, self-assemble, and anchor as monolayers. The polymer architectures combine amphilic structures which self- organic as monomers, produce highly ordered polymeric Langmuir- Blodgett films, and incorporate mobility and assembly via flexible linkages. Thin film chemistry will use a flexible, low surface energy siloxane backbone, which has been derivatized with self-assembling, terminally functionalized, long hydrocarbon alkyl chains for surface chemisorption, as well as mobile perfluoroalky side chains for enhanced friction properties.