| 摘要 |
A poly(arylether sulfone)polymer[(t-PAES)polymer], wherein more than 70% moles of the recurring units are recurring units (Rt) of formula (St): -E-Ar1-SO2-[Ar2-(T-Ar3)n-SO2]m-Ar4- (formula St) wherein: n and m, equal to or different from each other, are independently zero or an integer ranging from1 to 5, each of Ar1, Ar2, Ar3 and Ar4 equal to or different from each other, is an aromatic moiety,T is a bond or a divalent group optionally comprising one or more than one heteroatom; - E is of formula (Et): wherein each of R', equal to or different from each other, is selected from a halogen, an alkyl, an alkenyl, an alkynyl, an aryl,an ether, a thioether, a carboxylic an acid, an ester, an amide, an imide, an alkali or alkaline earth metal sulfonate, an alkyl sulfonate, an alkali or alkaline earth metal phosphonate, an alkyl phosphonate, an amine,and a quaternary ammonium;j' is zero or an integer ranging from 1 to 4,and further wherein the (t-PAES) polymer exhibits a 1H NMR signal at from about 8.1 to about 8.3 ppm of ≤ 1. |
