Novel cationic membranes

Details Novel cationic membranes Novel cationic membranes

1980-03-24

1981-10-20

Edmundson, F.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204282, 204296, C25B 1308

Patent

active

042959527

ABSTRACT:
Cationic membranes permeable to ions but fluid impermeable comprising a partly sulfonated terpolymer of styrene, divinylbenzene and at least one member of the group consisting of 2-vinylpyridine, 4-vinylpyridine and acrylic acid, the degree of sulfonation varying through the membrane cross-section from a maximum or the anodic surface to a minimum at the cathodic surface, their preparation, their use in electrolysis cells and electrochemical processes.

REFERENCES:
patent: 3562139 (1971-02-01), Leitz
patent: 3657104 (1972-04-01), Hodgdon
patent: 3821127 (1974-06-01), Mizutani et al.
patent: 3976549 (1976-08-01), Falvo
patent: 4100113 (1978-07-01), McCain
patent: 4101395 (1978-07-01), Motani et al.
patent: 4123336 (1978-10-01), Seko et al.
patent: 4166014 (1979-08-01), Sata et al.

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