Perfluoropropylvinyl ether (PPVE) is a comonomer of fluorine-containing vinyl ether, a colorless and transparent liquid, used in the synthesis of fluoroplastics. PPVE can effectively destroy the crystallinity of TFE-based copolymers, and is widely used in the synthesis of fluoropolymers (such as PFA, modified polytetrafluoroethylene, etc.). It can also be used to introduce fluorine functional groups into organic molecules in agriculture and pharmaceutical industry.