Process of preparing polymer sulphonyl derivatives

Details Process of preparing polymer sulphonyl derivatives Process of preparing polymer sulphonyl derivatives

1989-07-24

1992-06-02

Kight, III, John

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

Synthetic resins

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

5253285, 525534, 528125, 528174, 528175, 528126, C08G 6540, C08G 7523, C08G 802, C08F28300

Patent

active

051187663

ABSTRACT:
A process for making a polymer carrying a plurality of pendant groups SO.sub.2 Z' (where Z' is halogen) comprises reacting with an inorganic acid halide a substantially water-insoluble derivative of the corresponding polymer sulphonic acid with cations of valency 2, 3 or 4. The process is especially useful when the polymer sulphonic acid is one which in free acid form or monovalent cation salt form is soluble in or heavily swollen by water at temperatures in the range 0.degree.-30.degree. C. Suitably the polymer sulphonic acid is derived from a polyarylether-sulphone or -ketone or -sulphone/-ketone copolymer containing dioxyphenylene groups.

REFERENCES:
patent: 3709842 (1973-01-01), Quentin
patent: 4256862 (1981-03-01), Binsack et al.
patent: 4268650 (1981-05-01), Rose
patent: 4273903 (1981-06-01), Rose
patent: 4414368 (1983-10-01), Coplan et al.
patent: 4419486 (1983-12-01), Rose
patent: 4508852 (1985-04-01), Bikson et al.
patent: 4833219 (1989-05-01), Guiver et al.

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