Preparation of sulphonated polyketones

Details Preparation of sulphonated polyketones Preparation of sulphonated polyketones

1990-09-12

1992-10-06

Anderson, Harold D.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C08G 6702

Patent

active

051532808

ABSTRACT:
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.degree. to +40.degree. C. A molar excess of sulphonating agent is preferably used. The sulphonated polyketone produced contains one or more types of unit of formula --[COC(R.sup.1).sub.2 C(R.sup.1).sub.2)-- wherein the R.sup.1 groups are independently H, C.sub.1 to C.sub.10 alkyl or SO.sub.3 H with the proviso that at least one R.sup.1 group is SO.sub.3 H.

REFERENCES:
Macromolecules, vol. 17, No. 12, Dec. 1984, pp. 2830-2837, American Chemical Society, Washington, U.S; R. Gooden et al.: "Solid-State photochemistry of poly(ethylene-co-carbon monoxide), Model studies of polyethylene photochemistry" *p. 2832*.

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