Linear A-B-A triblock copolymers with an oligo(oxyethylene) central bl
ock, and different networks have been synthesized. ac conductivity, el
ectrochemical stability and thermal behaviour of lithium polymer elect
rolyte based on these materials have been investigated. The more promi
sing host polymer is obtained from step by step reaction of several po
ly(ethylene glycol) with 3-chloro-2-chloromethyl-1-propene, followed b
y free-radical cross-linking of the double bonds.