Fluoro-terminated hyperbranched poly(aryl ether ketone)(HPOP—PEEK—F)with 4-phenoxyphenyl side groups was prepared from A2(2-(4-phenoxyphenyl)-1

4-diphend)and B3(1

3

5-tris[4-(4-flourobenzoyl) phenoxy]benzene)with a function group ratio of 0．48：1(A2：B3)．The chemical structure of HPOP-PEEK—F was confirmed by FTIR and1H-NMR．The degree of branching(DB) of HPOP-PEEK—F was 0．66 determined by1H-NMR measurements．The phenyl ethynyl-terminated hyperbranched poly(ether ether ketone)(HPOP—PEEK-PEP) was prepared by the end—capping approach．The HPOP—PEEK—PEP showed high glass transition temperature than HPOP-PEEK-F

but exhibited lower thermal stability．After cross—linking

the glass transition temperature

thermal stability and anti-chemical eorrodibility of HPOP—PEEK—PEP were all improved.