Polyetherketoneetherketoneketone (PEKEKK) has excellent comprehensive properties and broad application prospects.

Polyaryl ether ketone (PAEK) is a crystalline polymer formed by connecting a phenylene ring to a carbonyl (ketone) group through an oxygen bridge. PAEK can be divided into subdivided products such as polyetheretherketone (PEEK), polyetherketone (PEK), polyetherketoneketone (PEKK), polyetheretherketoneketone (PEEKK) and polyetherketoneetherketoneketone (PEKEKK). Among them, polyetherketoneetherketoneketone (PEKEKK) is an important variety of PAEK after PEEK.…