Dynamic mechanical properties and morphology of sulfonated polystyrene ionomers neutralized with mixtures of various cations

Summary

The effects of the addition of mixed cations to the acid form sulfonated styrene copolymers on their mechanical properties and morphology were investigated. It was found that the matrix T _g, does not Change with the type of cations. However, the Cluster T _g, ionic moduli, and the Position of the SAXS peak were affected by the type of cations. The decreasing trends of Cluster T _g with increasing the amount of cesium and zinc cations in Na/Cs, Bai Cs, and Ba/Zn mixtures, were explained on the basis of the considerations of the size, Charge, and type of cations, which alter the degree of clustering as weil as ion-hopping mechanism.