In last century

poly(aryl ether ketone) resins were developed as super engineering plastics applied to a wide range of fields

such as high-tech defense industry

weapons and equipment

aerospace

electronics

automobiles

machinery

oil industry

nuclear energy and physical therapy and health application.In general

these polymers were prepared by A2 + B2-type nucleophilic polycondensation reaction procedure from bisphenol monomer and difluoride monomer.Molecular structure of poly(aryl ether ketone) more effect on the polymer performance.Two kinds of poly(aryl ether ketone)s which are semi-crystalline polymer and amorphous polymer are formed by changing molecular structure.Semi-crystalline poly ( aryl ether ketone)s are constructed by regular three unit structure of ethers

ketones and benzene.Amorphous poly(aryl ether ketone)s contain pendant groups or non-regular structure

which destroy the crystalline structure of the polymer.Semi-crystalline poly(aryl ether ketone)s having excellent heat resistance

chemical stability are generally used as structured materials

however amorphous poly(aryl ether ketone)s have good processing properties and become a class of excellent functional material by introducing special functional groups.Base on the relationship between the structure and properties of poly(aryl ether ketone)

this article introduced several types of poly(aryl ether ketone ) s (PAEKs) currently developed

including their development and synthetic routes

investigated the relationship between structure and performance

made an overview of recent advances in functional PAEKs

and finally outlook the trends in applications of PAEKs.