| 摘要 |
The invention concerns a sulphonated aromatic polyether ketone containing units of general formula (II): [Ar-O-]p-Ar-[[CO-Ar'-]x-O-Ar]m-[CO-Ar'-]y-[O-Ar-]n-CO-], in which between 1 and 100 % of the O-phenylene-CO-units are substituted with an SO3M group and the sulphonated and unsulphonated O-phenylene-CO-units and the sulphonated and unsulphonated O-phenylene-O units can be in any sequence; and in which Ar, Ar', M, x, n, m, y and p have the following meanings: Ar stands for a phenylene ring with p- and/or m-bonds; Ar' stands for a phenylene, naphthylene, biphenylene-, anthrylene- or other divalent aromatic unit; x, n and m are all, independently of one another, 0 or 1; y is 0, 1, 2 or 3; p is 1, 2, 3 or 4; M stands for one or more elements selected with due consideration to ionic valencies from the following group: H, NR4, in which R stands for H, C1-C4 alkyl, or a metal, preferably an alkali or alkaline earth metal or a metal of sub-group 8. |
