Synthesis of poly(aryl ether)s bearing phosphonated side-chains from phosphonate ester-containing bisphenols

As part of our project research to design aromatic polymers with pendant acid groups, we have paid efforts synthesize phosphonic acid-containing poly(aryl ether)s (PAEs) from functionalized monomers. To this end, two bisphenol monomers bearing ester groups were synthesized. A study the polymerization reaction via model compound preparation point out specific experimental conditions prevent side reactions between functions and phenolate Based on these optimised conditions, different PAEs high molecular weights prepared. Free groups-containing PAE obtained by subsequent controlled hydrolysis phosphonate groups.