| 摘要 |
Sulphonated polyketones are prepared by reacting a linear alternating copolymer of carbon monoxide and one or more olefins (polyketone) with a sulphonating agent (e.g. chlorosulphoric acid) in a solvent (e.g. dichloromethane) at a temperature in the range -20 DEG to +40 DEG C. A molar excess of sulphonating agent is preferably used. The sulphonated polyketone produced contains one or more types of unit of formula-[COC(R1)2C(R1)2]-wherein the R1 groups are independently H, C1 to C10 alkyl or SO3H with the proviso that at least one R1 group is SO3H.
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