Utilizing the unique properties of fluorine substitution is an effective strategy for constructing highly functional materials. Here, we synthesized a novel copolymer composed of [1.1.1]propellane and perfluoro(propyl vinyl ether) (PPVE), rich in alternating sequences. The spin-coated copolymer film was amorphous, and its surface exhibited an extremely low surface free energy (γ). The γ value was lower than that of polytetrafluoroethylene despite containing only 40 mol % PPVE units. This can be attributed to the cancellation of the C–F dipole moments by the entirely random orientation of the fluorine units.

中文翻译：

---

[1.1.1]Propellane 和全氟乙烯基醚的高度交变共聚物：形成含氟单体含量为 <50% 的疏水和疏油表面


利用氟取代的独特特性是构建高功能材料的有效策略。在这里，我们合成了一种由 [1.1.1] 推进烷和全氟（丙基乙烯基醚）（PPVE）组成的新型共聚物，富含交替序列。旋涂共聚物薄膜是无定形的，其表面表现出极低的表面自由能 （γ）。尽管 PPVE 单元仅包含 40 mol % PPVE，但 γ 值低于聚四氟乙烯。这可以归因于氟单元的完全随机取向抵消了 C-F 偶极矩。