Perfectly alternating poly(arylene ether ketone sulfone)'s

In this study, the synthesis of perfectly alternating poly(arylene ether ke tone sulfone)'s (PAEKS) via their soluble poly(arylene ether ketimine sulfo ne) (PAEKetS) intermediates was described. In the first stage of this proce dure a new bishalide monomer, 1,1'-bis(4-fluoro(n-benzohydroxylidene anilin e)) sulfone (FBHAS) was synthesized. In the second stage, the polymerizatio n of this monomer with various aromatic bisphenols to form the amorphous PA EKetS's and then the hydrolysis of the ketimine groups on the PAEKetS's bac kbones to ketones in mild acidic conditions in order to obtain perfectly al ternating PAEKS's was conducted.