Cross-linking agents poly copolymer

Stoica et al. [140,141] developed and characterized another anion-conducting membrane based on a poly(epichlorohydrin) copolymer using allyl glycidyl ether as cross-linking agent. In order to introduce anionic properties, two cyclic diamines were incorporated DABCO and l-azabicyclo-[2.2.2]-octane (quinuclidine) (Fig. 5.13). To stabilize the membrane, the film was thermally or photochemically cross-linked. High conductivities were obtained without any KOH addition. At 60 °C and 98% relative humidity, the membrane exhibited a hydroxyl conductivity of 1.3 X 10 S/cm and an ion exchange capacity of 1.3 X 10 equiv./g. The performance of this MEA in H2/O2 AFC operation was 100 X 10 W/cm for 270 X 10 A/cm [142]. 

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