Polymeric ion conductors

Details Polymeric ion conductors Polymeric ion conductors

1992-01-24

1993-03-23

Seidleck, James J.

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

Synthetic resins

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

525 92, 525130, 525177, C08F29704

Patent

active

051964848

ABSTRACT:
ABA triblock polymers, the A block being rigid having a transition away from its rigid phase above 70.degree. C., the B block being wholly or partly ion-coordinating, elastomeric or amorphous, the B/A block length ratio being greater than 1. When the B block is complexed with an ionic salt these polymers act as polymeric electrolytes which may be used in cells etc. Preferred polymers are those where HC.dbd.CH sites in the polybutadiene segment of a polystyrene-polybutadiene-polystyrene polymer are replaced by --CH.sub.2 CH--X--(CH.sub.2 CH.sub.2 O).sub.m --R, where X is link, R is alkyl. A preferred salt is LiCF.sub.3 SO.sub.3.

REFERENCES:
patent: 3984492 (1976-10-01), Imagawa et al.
patent: 3993627 (1976-11-01), Sekmakas et al.
patent: 4808255 (1989-02-01), Markevka et al.
Finaz et al "Preparation de copolymers sequences styrolene-oxyde d'ethylene", Bull. Soc. Chim. France (1962) pp. 262-266.

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