| 摘要 |
A polymeric compound is derived from a polyhydric material and has pendant sulphonate groups of the general formula <CHEM> where X is an aliphatic, aromatic, carbocylic or heterocyclic group; Y is hydrogen, halogen or an alkyl, aryl, alkoxy, aryloxy or aralkyl group, CO2<->Z<+>, CO2R or SO3<->Z<+>; Z<+> is a cationic counter ion and R is hydrogen, alkyl, alkylene, aryl or aralkyl group. |
